if three numbers in the ratio 3 : 2 : 5 be such that the sum of their squares is 1862 , the middle number will be
explanation : let the numbers be 3 x , 2 x and 5 x . then , 9 x + 4 x + 25 x = 1862 ⇒ 38 x = 1862 ⇒ x = 49 ⇒ x = 7 . middle number = 2 x = 14 option b
multiply(sqrt(divide(1862, add(add(multiply(3, 3), multiply(2, 2)), multiply(5, 5)))), 2)