If `3/5` of the square of a number is 126.15, then what is the number?

Three-fifth of the square of a certain number is 126.15. What is the number? (a) 14.575.69 (c) 145 (d) 210.25

Three positive numbers are in the proportion 2 : 3 : 5. If the sum of their squares is 152, then what is the largest number ?

If the sum of a number and its square is 182, what is the number? a. 15 b. 26 c. 28 d. 91 e. none of these

Three numbers are in the ratio 2 : 4 : 5. If the sum of their squares is 1620, then what are the numbers?

(1)/(4) " of " (3)/(5) " of " (6)/(5) of a number is 54. What is the number ?

The sum of the squares of two odd numbers is 11570. The square of the smaller number is 5329. What is the other number?