Question

The sum of two digit number and the number obtain by reversing it digit in 121 find the number if it unit place digit is grater then the 10s place digit by 7

Answer 1

Answer:

our number is 29

Step-by-step explanation:

let the tens place digit = x

then unit place digit = x + 7

so, given number is formed = 10x + (x+7)

A.T.Q

10x + (x+7) + 10(x+7) + x = 121

10x + x + 7 + 10x + 70 + x = 121

22x + 77 = 121

22x = 121 - 77

22x = 44

x = 44/22

x = 2

given number is 10x + (x + 7)

= 10 × 2 + (2+7)

= 20 + 9

= 29