Question

A number consists of two digits. The digit in the tens place exceeds the digit in the units place

by 4. The sum of the digit is of the number. The number is

Answer 1

Let the tens digit is X
Unit digit= X-4

Number
X×10 +X-4


ATQ

sum of number = 1/7 of number

X+X-4 = 1/7 × 11X-4

14X-28 =11X-4

3X= 24
X=8


So the number is

(8×10 +8-4 ) =84