Multiplication + expression of a variable from the formula - practice problems - page 3 of 4
Number of problems found: 64
- Squares above sides
In a right triangle, the areas of the squares above its sides are 169, 25, and 144. The length of its longer leg is: - 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? - Parentheses in an expression
Insert parentheses to apply: 1 2 3 4 = 5 - Multiplying 23611
The result of multiplying two fractions is 9 3/5. If one of the fractions is 9 3/7, find the other fraction.
- Uboid volume
Calculate the cuboid volume if the walls are 30cm², 35cm², 42cm² - Multiplied 11801
Which number needs to be multiplied by 2 3/4 to get 8 1/3? - Number 9361
I think the number. If I divide it by four and add 7 to the share, I get 62. What number do I think? - Simplify
Simplify expression - which expression is equivalent to: 3(m + 2) − 4(2m − 9) - Eggs
3400 eggs sliced hens for February and March. We must calculate how many hens can make 3400 eggs when one hen gives two eggs a day for 59 days.
- Yellows 7650
Stano got a box of dice. Half of them were brown and blue in color, and the others were red, yellow, and green. There were 12 more reds than yellows, 19 more reds, and 5 more greens than yellows. How many cubes were in the box? - Differing 7391
The product of two numbers differing by four does not change when we decrease the larger number by two and increase the smaller number by one. What are the numbers? - Two thirds
Find two-thirds of the number equal to two-thirds of 99. Find this number. - 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? - Improvements 5370
After technical improvements, the radio receiver, whose price was 220 €, was auctioned for 20%. He was later reduced by 15% of the new price. What was its final price?
- Elements
If the number of elements is decreased by two, the number of permutations is decreased 30 times. How many elements are? - Four swords
Obelix has three helmets, four swords, and five shields. How many words must you make at the blacksmith forge Metallurgix to be able to walk another 90 days in unique armor? - Bookshelve
Bookshelves with an original price of € 200 twice become cheaper. After the second discount of 15%, the price was € 149.60. Determine how much % becomes cheaper for the first time. - Cylinder twice
If the radius of the cylinder increases twice, and the height is reduced twice, then the volume of the cylinder increases (how many times?): - Product 2873
Which number is five times less than the product of the numbers 15 and 7?
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