Question

The unit digit of a two digit number is twice its tens digit . If the digit are reversed then the number is 27 more than original number .

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

Let the tenth digit of the number be p

then, As per the question

the unit digit will be 2p

now, when the digits are reversed

10×2p + 1×p = 27 + 10×p + 1×2p

⇒20p + p = 27 + 10p + 2p

⇒21p = 27 + 12p

⇒21p - 12p = 27

⇒9p = 27

⇒p = 27/9

⇒p = 3

∴ The number = 10p + 2p = 10×3 + 2×3 = 30 + 6 = 36

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