Fractions + expression of a variable from the formula - practice problems - page 3 of 17
Number of problems found: 324
- The floor
The floor collapsed because three and a half times the amount it had been designed to hold had been stored in the room. If we had stored 980 tons in the room, what amount was the floor designed to hold? - Cheese consumption
I have some cheese. I used 2/5 of the total amount of cheese yesterday. Today, I used 2/5 of the remaining cheese from yesterday. If 900 g of cheese remains at the end of today, how many grams of cheese did I have initially? - Combined 22681
The farm keeps cows, horses, and sheep. There are 37 cows, which is 25 more than the sheep. There are seven times fewer horses than cows and sheep combined. How many animals do they keep on the farm together? - Three-quarters 5746
Ondra found that three-quarters of a bag of washing powder was used up in their family in 12 weeks. How many more weeks will they last? How long does a whole bag of washing powder last?
- Increased 81943
The mobile was increased by a quarter of the original price and then again by a quarter of the new price. How much did the mobile cost if its final price was 125 euros? - Secondary 7394
P girls and four times as many boys applied to a certain school. After the entrance exams, a quarter of the girls and half of the boys got into secondary school. How many students were accepted into the 1st year of this high school? - Calculate 83068
The internal volume of the barrel is 15 times greater than the bucket's volume. The volume of the bucket is 5 times the volume of the kettle. We took a third of the water from a barrel, leaving 60 liters in it. Calculate the volume of the kettle in liters - Schoolchildren 6175
Of all schoolchildren, one-sixth prefers a pear for a snack, 3/4 of the rest has an apple, and the other five students like an orange for a snack. How many pupils are there? - Participated 5634
Last year, five fewer exhibitors participated in the Autosalon exhibition. This year there were a fifth more than last year, i.e., 150 exhibitors. How many exhibitors participated in the motor show the year before?
- A cook
A cook wants to make enough cookies for 159 students. The cookie recipe makes 1 1/4 dozen cookies. A dozen equals 12. How many batches does the cook need to make if each student gets one cookie? - Pineapples 33061
We can exchange three bananas for four oranges in a barter shop, and nine bananas are obtained for four pineapples. How many oranges do we get for one pineapple? - Together 19833
Lucie, Jan, and Matej shared the candy in a ratio of 3:4:5. Matej got 20 sweets. How many candies did they share? - Marriage sttus
In our city, 3/5 of the women are married to 2/3 of the men. Find what part of the population is free. - Once simplified
Once simplified, which of the expressions below have a value between 20 and 30? Select all that apply. A) 32÷8×514 B) -18÷6×9 C) 4×12÷2 D) 12×413÷(-2)
- Basket 8054
There were 16 buns in the basket on the table. Josef ate half of it, Eva ate the rest, and Duncho ate it. How much did Dunco eat? - Creases 2795
Three punch cuts cost as much as two creases. How much does it cost if five punch cuts cost 2 euros 50 cents? - Oranges
The mother divided her three children's oranges in a ratio of 6:5:4. Two children gave 45 oranges. How many oranges were there? - Divide 44261
Divide the number 20 into two parts so that the first part is four times larger than the second. What is the ratio? - One-fifth 3999
They sold one-fifth of the fabric package in the store, and 44m of fabric remained in it. How many meters of material were in the package?
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