Question

in a number units, a digit is 3 less than the tens digit. the number is greater than 3 of the 7 times of sum of the digits. find the numbers

Answer 1

Answer:

Number = 52

Step-by-step explanation:

Let say tens digit =  T

Unit digit = T - 3

Number = (10 × T) + T -3

Number = 11T -3

Sum of Digits = T + T - 3

Sum of Digits = 2T - 3

As per question

Number = 3 + 7 × ( Sum of Digits)

11T -3 = 3 + 7 × (2T -3)

11 T - 3 = 3 + 14T - 21

11 T -3 = 14 T - 18

18 - 3 = 14T - 11T

15 = 3 T

T = 5

Number = 11T -3

Number = 11 × 5  - 3

Number = 52