Question

A two digit number is seven times the sum of its digits The number formed by reversing the digits is 18 less than the given number. Find the given number by Cross multiplication method.​

Answer 1

Answer:

ghchhhffhhfddyyreedghiuredgkudsdtu

Answer 2

Answer:

The required number is 42.

Step-by-step explanation:

Given Problem:

A two digit number is 7 times the sum of its digits . The number formed by reversing the digits is 18 less than original number . The number is?

Solution:

To Find:

The required number.

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Method:

Let tenth digit is a and unit digit is b

So,

The number is ‘ab’ and value is 10a+b

Now,

Sum of two digit is a+b

 

Now,

Reversing the digit value is 10b+a

 

Or,

b=2 and a=2b=4

Hence,

The required number is 42.