Question

The units digit if a two- digit number is 3 and seven times the sum of the digit is the number itself. find the number in hindi

Answer 1

Let's assume that the number be 10a+b

Now according to the question
b=3 and
7(a+b) = 10a+b
7a+21=10a+3
3a=18
a=6

So, the number is 63

in hindi ६३ or तिरेसठ

Answer 2

Answer:

Unit of two digit number is 3

Let the tens digit number be x

The Number will be 10x + 3

Sum of two digit number = x + 3

According to the question now :

➳ 7(x + 3) = 10x + 3

➳ 7x + 21 = 10x + 3

➳ 21 - 3 = 10x - 7x

➳ 18 = 3x

➳ x = 18/3

➳ x = 6

Therefore, the tens digit number is 6.

Hence,

The required number = 10x + 3 = 10(6) + 3 = 63.