Question

One-third of a number decreased by 5, the results is 15. Find the number

Answer 1

let the no=x

x/3-5=15

x/3=15+5

x=20/3

Answer 2

solve = let the no. be x

According to the question


1/3x-5=15
1/3x=15-5
1/3x =10
x = 10×3
x = 30
Thus . The number is 30