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Q.

If the unit's and ten's digits of a two-digit number are y and x, then the number is:


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a

10x+y

b

10y+x

c

x + y

d

x y 

answer is A.

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Detailed Solution

It is given that the unit's and ten's digits of a two-digit number are y and x.
That is, ten’s digit = x and unit’s digit = y.
Therefore, the number = 10 (ten’s digit) + 1(unit’s digit)
⇒ 10x+y  
So, if the unit's and ten's digits of a two-digit number are y and x, then the number is 10x+y  .
Hence, the correct option is 1.
 
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