Question

The digit at tens place is twice the digit at unit’s place in a 2-digit number. The number formed by interchanging the digits is 18 less than the original number. Find the 2-digit number. explain it.​

Answer 1

Answer:

Tens Digit = 2 × 2 = 4. Hence, the number is 42.

Simple

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Answer 2

Answer:

Hey!!! Hope this helps

Step-by-step explanation:

et the ten's digit be x and unit digit be y.

Then

ATQ,

=> x = 2y

And

=> 10x + y - 18 = 10y + x

=> 9x - 9y = 18

=> x - y = 2

=> 2y - y = 2

=> y = 2

Thus x = 4

Original Number = 42