Question

if 1/3 of a number exceeds its 2/7 by 1. find the number

Answer 1

Let the number = x
1/3 of the number=x/3
2/7 of the number=2x/7
Given
x/3-2x/7=1
(7x-6x)/21 =1
x/21=1
x=21
The number=x=21

Answer 2

Let the number be x

from the given data,

1/3x=2x/7+1
x/3-2x/7=1
x/21=1
x=21