Question

In a two-digit number,the digit in the units place is twice the digit in the tens place.if 27 is added to it,digits are reversed.find the number
STEP BY STEP EXPLANATION ​

Answer 1

Answer:

The required number is 36

Step-by-step explanation:

Let ten's digit = x  

Unit's digit = 2x

Required Number = 10x + 2x = 12x

On Interchanging the Digit's Number = 10 (2x) + x = 21x

ATQ

⇒ 12x + 27 = 21x

⇒ 27 = 21x - 12x

⇒ 27 = 9x

⇒ 27/9 = x

⇒ 3 = x

Required Number = 12 × 3 = 36

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