Find the whole from a percentage

{"questions":[{"content":"A bank paid a depositor $12\\space000 \\space\\text{rubles}.$ in interest. How much was deposited if the interest rate was $12\\%?$ [[image-1]][[fill_choice_big-511]]","widgets":{"image-1":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/06/bank2.svg","width":"300"},"fill_choice_big-511":{"type":"fill_choice_big","options":["$100\\space000\\space \\text{rubles}$","$120\\space000\\space \\text{rubles}$","$200\\space000\\space \\text{rubles}$"],"placeholder":0,"answer":0}}},{"content":"In August, the price of a stove rose by $10 \\%$ to $22\\space000\\space \\text{rubles}$, which is $110\\%.$ of its original price. Find the original price.[[image-4]][[fill_choice_big-542]]","widgets":{"image-4":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/03/duhovka-1.svg","width":"299"},"fill_choice_big-542":{"type":"fill_choice_big","options":["$20\\space000\\space\\text{rubles}$","$11\\space000\\space\\text{rubles}$","$18\\space000\\space\\text{rubles}$"],"placeholder":0,"answer":0}}},{"content":"A car uses $6\\space L$ of fuel per $100 \\space km,$, which is $30\\%$ of a truck's fuel consumption. Find the truck's fuel consumption.[[image-9]][[fill_choice_big-593]]","widgets":{"image-9":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/03/pozharnaya-mashina-1.svg","width":"300"},"fill_choice_big-593":{"type":"fill_choice_big","options":["$20 \\space L$","$18\\space L$","$12 \\space L$"],"placeholder":0,"answer":0}}},{"content":"An online store sells $100$ phones, which is $10\\%$ of its monthly target. Find the monthly sales target.[[image-16]][[fill_choice_big-634]]","widgets":{"image-16":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/03/na-rabotu-2.svg","width":"299"},"fill_choice_big-634":{"type":"fill_choice_big","options":["$1000$","$1500$","$300$"],"placeholder":0,"answer":0}}},{"content":"A goose's mass is $8\\%$ of a pig's mass. Find the pig's mass if the goose's mass is $8\\space kg.$[[image-100]][[fill_choice_big-675]]","widgets":{"image-100":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/12/pig_2-01.svg","width":"299"},"fill_choice_big-675":{"type":"fill_choice_big","options":["$100\\space kg$","$70\\space kg$","$60\\space kg$"],"placeholder":0,"answer":0}}},{"content":"A notebook costs $50\\space \\text{rubles},$, which is $5\\%$ of a sketchbook's price. Find the sketchbook's price.[[image-81]][[fill_choice_big-716]]","widgets":{"image-81":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/08/v-ochkah-s-knigoi-kniga-tetrad-pishet-01-1.svg","width":"298"},"fill_choice_big-716":{"type":"fill_choice_big","options":["$1000\\space \\text{rubles}$","$300\\space \\text{rubles}$","$500\\space \\text{rubles}$"],"placeholder":0,"answer":0}}},{"content":"There are $30$ students in the class, which is $2\\%$ of the number of students in the school. Find the number of students in the school.[[image-64]][[fill_choice_big-757]]","widgets":{"image-64":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/11/obrazavr_break.svg","width":"300"},"fill_choice_big-757":{"type":"fill_choice_big","options":["$1\\space500$","$2\\space500$","$2\\space000$"],"placeholder":0,"answer":0}}},{"content":"The width of the rectangle is $70\\%$ of its length. Find the length of a rectangle if its width is $21 \\space cm.$[[image-25]][[fill_choice_big-880]]","widgets":{"image-25":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/08/linei-ka-2.svg","width":"300"},"fill_choice_big-880":{"type":"fill_choice_big","options":["$30 \\space cm$","$7 \\space cm$","$14 \\space cm$"],"placeholder":0,"answer":0}}},{"content":"A car's speed is $3\\%$ of an aeroplane's speed. Find the aeroplane's speed if the car travels at $18\\space km/ h.$[[fill_choice_big-81]][[image-146]]","widgets":{"fill_choice_big-81":{"type":"fill_choice_big","options":["$600\\space km/ h$","$540\\space km/ h$","$700\\space km/ h$"],"placeholder":0,"answer":0},"image-146":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/07/samolet2-01.svg","width":"300"}}},{"content":"There are two stories in the book. The length of the first story is $880$ pages, which is $10\\%$ longer than the length of the second story, or is $110\\%$ the length of the second story. Find the length of the second story.[[fill_choice_big-181]][[image-250]]","widgets":{"fill_choice_big-181":{"type":"fill_choice_big","options":["$800$ pages","$110$ pages","$990$ pages"],"placeholder":0,"answer":0},"image-250":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/06/istorik-istoriya-chitaet-knigu-kniga-lupa-01.svg","width":"300"}}}]}

{"questions":[{"content":"A delivery contains $70\\space kg$ of pears, which is $35\\%$ of the total mass. Find the total mass of the delivery.[[image-1]][[fill_choice_big-511]]","widgets":{"image-1":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/10/obrazavr_frukty_grusha.svg","width":"300"},"fill_choice_big-511":{"type":"fill_choice_big","options":["$200\\space kg$","$20\\space kg$","$350\\space kg$"],"placeholder":0,"answer":0}}},{"content":"The box contains $5$ red pencils, which is $50\\%$ of the total number of pencils. How many pencils are in the box?[[image-4]][[fill_choice_big-542]]","widgets":{"image-4":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/05/karandashi.svg","width":"299"},"fill_choice_big-542":{"type":"fill_choice_big","options":["$10$","$25$","$15$"],"placeholder":0,"answer":0}}},{"content":"The length of the railway line is $700\\space km,$, which is $3.5\\%$ of the total length of the track. Find the length of the railway track.[[image-9]][[fill_choice_big-593]]","widgets":{"image-9":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/03/poezd-elektrichka-1.svg","width":"300"},"fill_choice_big-593":{"type":"fill_choice_big","options":["$20 \\space000\\space km$","$15\\space000\\space km$","$10\\space000\\space km$"],"placeholder":0,"answer":0}}},{"content":"A solution contains $2\\%$ salt by mass. How much solution is needed to obtain $1\\space kg$ of salt?[[image-16]][[fill_choice_big-634]]","widgets":{"image-16":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/04/yakor-more-1.svg","width":"299"},"fill_choice_big-634":{"type":"fill_choice_big","options":["$50\\space kg$","$200\\space kg$","$500\\space kg$"],"placeholder":0,"answer":0}}},{"content":"During the day, $2\\space kg$ berries were collected in the forest, which is $20\\%$ of the monthly harvest. How many berries were collected in a month?[[image-100]][[fill_choice_big-675]]","widgets":{"image-100":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/10/obrazavr_yagody_chernaya-smorodina.svg","width":"298"},"fill_choice_big-675":{"type":"fill_choice_big","options":["$10\\space kg$","$20\\space kg$","$12\\space kg$"],"placeholder":0,"answer":0}}},{"content":"A cow eats $20 \\space kg$ of grass per day, which is $500\\%$ of the mass of grass eaten by a sheep. How much grass does a sheep eat per day?[[image-81]][[fill_choice_big-716]]","widgets":{"image-81":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/07/ovtsa-1.svg","width":"298"},"fill_choice_big-716":{"type":"fill_choice_big","options":["$4\\space kg$","$5\\space kg$","$12\\space kg$"],"placeholder":0,"answer":0}}},{"content":"$45\\space 000\\space \\text{rubles},$ was spent on the purchase of furniture, which is $50\\%$ of the family budget. Find the size of the family budget.[[image-64]][[fill_choice_big-757]]","widgets":{"image-64":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/07/take-out-rubbish-2.svg","width":"300"},"fill_choice_big-757":{"type":"fill_choice_big","options":["$90$ thousand rubles","$40$ thousand rubles","$100$ thousand rubles"],"placeholder":0,"answer":0}}},{"content":"There are $12$ red roses growing in the flowerbed, which is $40\\%$ of all flowers. Find the number of flowers growing in the flowerbed.[[image-49]][[fill_choice_big-798]]","widgets":{"image-49":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/08/roza.svg","width":"299"},"fill_choice_big-798":{"type":"fill_choice_big","options":["$30$","$6$","$48$"],"placeholder":0,"answer":0}}},{"content":"A kitten's mass is $10 \\%$ of its mother's mass. Find the mother's mass if the kitten has a mass of $410\\space g.$[[image-36]][[fill_choice_big-839]]","widgets":{"image-36":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/10/koty-kot-koshka-kotyat-miska-moloko-1.svg","width":"300"},"fill_choice_big-839":{"type":"fill_choice_big","options":["$4\\space100\\space g$","$2\\space000\\space g$","$3\\space000\\space g$"],"placeholder":0,"answer":0}}},{"content":"A solution contains $9\\%$ of a dissolved substance by mass. How much solution is needed to obtain $2.7\\space kg$ of that substance?[[image-25]][[fill_choice_big-880]]","widgets":{"image-25":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2021/09/urok_3.svg","width":"300"},"fill_choice_big-880":{"type":"fill_choice_big","options":["$30 \\space kg$","$25 \\space kg$","$90 \\space kg$"],"placeholder":0,"answer":0}}}]}

{"questions":[{"content":"A room has an area of $18\\space m^2$, which is $30 \\%$ of the apartment's total area. Find the apartment's total area.[[image-1]][[fill_choice_big-511]]","widgets":{"image-1":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/08/sinya-komnata.svg","width":"300"},"fill_choice_big-511":{"type":"fill_choice_big","options":["$60\\space m^2$","$30\\space m^2$","$180\\space m^2$"],"placeholder":0,"answer":0}}},{"content":"Travellers covered $120\\space km,$ on the first day, which is $20\\%$ of their planned route. What is the total length of the route?[[image-4]][[fill_choice_big-542]]","widgets":{"image-4":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/10/lodka_parus-01.svg","width":"299"},"fill_choice_big-542":{"type":"fill_choice_big","options":["$600\\space km$","$200\\space km$","$300\\space km$"],"placeholder":0,"answer":0}}},{"content":"A rectangular prism has a height of $6 \\space cm$, which is $20 \\%$ of its length. Find its length.[[image-9]][[fill_choice_big-593]]","widgets":{"image-9":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/03/komnata-detskaya-deti-igrushki-kubiki-1.svg","width":"300"},"fill_choice_big-593":{"type":"fill_choice_big","options":["$30\\space cm$","$20\\space cm$","$60\\space cm$"],"placeholder":0,"answer":0}}},{"content":"The cake contains $14 \\%$ sugar. Find the mass of the cake if $140 \\space g$ sugar was used to prepare it.[[image-16]][[fill_choice_big-634]]","widgets":{"image-16":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/10/obrazavr_tort-1.svg","width":"299"},"fill_choice_big-634":{"type":"fill_choice_big","options":["$1000\\space g$","$500\\space g$","$280\\space g$"],"placeholder":0,"answer":0}}},{"content":"The student read $110$ pages, which is $11\\%$ the number of all pages in the book. How many pages are in the book?[[image-100]][[fill_choice_big-675]]","widgets":{"image-100":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/12/knizhnyj-shkaf.svg","width":"299"},"fill_choice_big-675":{"type":"fill_choice_big","options":["$1000$","$1100$","$650$"],"placeholder":0,"answer":0}}},{"content":"A kitten's mass is $7 \\%$ of its mother's mass. Find the mother's mass if the kitten has a mass of $420\\space g.$[[image-81]][[fill_choice_big-716]]","widgets":{"image-81":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/12/kot-koshka-usiki-usy.svg","width":"298"},"fill_choice_big-716":{"type":"fill_choice_big","options":["$6\\space kg$","$5\\space kg$","$2\\space kg$"],"placeholder":0,"answer":0}}},{"content":"The mass of cooked meat is $75 \\%$ of its raw mass. How much raw meat is needed to obtain $1.5\\space kg$ of cooked meat?[[image-64]][[fill_choice_big-757]]","widgets":{"image-64":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/10/obrazavr_myaso.svg","width":"300"},"fill_choice_big-757":{"type":"fill_choice_big","options":["$2\\space kg$","$3\\space kg$","$1\\space kg$"],"placeholder":0,"answer":0}}},{"content":"Strawberries contain an average of $6 \\%$ sugar by mass. What mass of strawberries is needed to obtain $240 \\space g$ of sugar?[[image-49]][[fill_choice_big-798]]","widgets":{"image-49":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/09/est-pirog-.png","width":"299"},"fill_choice_big-798":{"type":"fill_choice_big","options":["$4\\space kg$","$2\\space kg$","$1\\space kg$"],"placeholder":0,"answer":0}}},{"content":"Red and magnetic iron ores contain about $60 \\%$ iron. How much ore do you need to mine to get $180\\space t$ iron?[[image-36]][[fill_choice_big-839]]","widgets":{"image-36":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2023/02/kuznecz-pech-pechka-ogon-1.svg","width":"299"},"fill_choice_big-839":{"type":"fill_choice_big","options":["$300\\space t$","$500\\space t$","$180\\space t$"],"placeholder":0,"answer":0}}},{"content":"A store received a shipment of plums. $80\\%$ could be sold; the rest had spoiled. What mass of plums was delivered if $160\\space kg.$ was sold?[[image-25]][[fill_choice_big-880]]","widgets":{"image-25":{"type":"image","url":"/wp-content/themes/Main/img/math-port/2022/06/shop-assistant-1.svg","width":"300"},"fill_choice_big-880":{"type":"fill_choice_big","options":["$200 \\space kg$","$300\\space kg$","$150 \\space kg$"],"placeholder":0,"answer":0}}}],"mix":1}