Question

If 70% of a number is 42 and 15% of the same number is 9, find 85% of that number.

Answer 1

Answer:  51

Step-by-step explanation:

let x be the number.

(70%)x = 42

0.7 x = 42

x = 60

we check 15% x 60 = 0.15 x 60 = 9, which is true.

85% of that number = 85% x 60 = 0.85 x 60 = 51.

Answer 2

Answer:

51

Step-by-step explanation: