Question

The unit of a two digit number is 3 and 7 times the sum of the digit is the number itself find the number

Answer 1

Units digit of a number = 3

Let the tens digit of the number be x.

Number = 10x + 3

Sum of the digits = x + 3

According to the question,

7(x + 3) = 10x + 3

7x + 21 = 10x + 3

10x - 7x = 21- 3

3x = 18

x = 6

Therefore the digits in the tens place is 6 and the number is 63 .

Hope it helps you.....

Answer 2

Answer:

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