Question

 In a two digit number, the unit’s digit is x and the ten’s digit is y. Then the number is
a) 10y + x b) 10x + y c) 10y – x d) 10x – y
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Answer 1

Answer ::: 10y + x

21 = 2×10 + 1

Similarly 10y + x

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Answer 2

As we know tens digit is multipled by 10 and unit digit is added..

Now - Tens digit = y

Unit digit = x

Now Multiply tens digit with 10 add unit digit .

Answer= 10y+x (a)

Therefore option a is correct...

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