Question

In A two digit number the digit in the unit place is 2 more then three time the digit in the tens place if the sum of the digit is 6 the number is

Answer 1

Answer:

The number is 15.

Step-by-step explanation:

Let the digit in the unit's place be x

and the digit in the ten's place be y

Therefore the number will be 10y + x

According to the conditions of the question,

x = 2 + 3y             --(i)

and x + y = 6        --(ii)

Therefore, on solving equation (i) and (ii), we get,

x = 2 + 3y and x = 6 - y

On equating, we get,

2 + 3y = 6 - y

=> 3y + y = 6 - 2

=> 4y = 4

=> y = 4/4 = 1

=> y = 1

As x = 6 - y

=> x = 6 - 1

=> x = 5

Therefore, as the number was 10y + x

=> The number = 10*1 + 5

                          = 10 + 5

                          = 15

Therefore, the number is 15.