Question

Three-fifth of the square of a certain number is 135, then that number is _____

a) 15
b) 25
c) 13
d) 23

Answer 1

Answer:

15

Step-by-step explanation:

let number be x

a/q

3/5(x^2)=135

x^2 =135*5/3

x^2 = 225

x =✓225

x = 15

therefore the value of x is 15