Question

When a number is decreased by 7.3%, the result is 60. What is the original number to

the nearest tenth?

Answer 1

Original Number = let we assume it is x

Number after decremented = y = 60

Total decrease = z = x-y = x-60

% of decrease = ((x-60)/x)*100 = 7.3

(x-60)*100 = 7.3x

100x -6000 = 7.3x

100x-7.3x = 6000

92.7x = 6000

x = 6000/92.7 = 64.73

Original Number = 64.73

Explanation: