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What least number must be added to 1056, so that the sum is completely divisible by 23 ?

What least number must be added to 1056, so that the sum is completely divisible by 23 ?

A.  2
B.  3
C.  18
D.  21























 Answer: Option A
Explanation: If the number 1056 is completely divisible by 23 means, remainder should come zero.
But if we divide 1056 by 23, the remainder is 2.
So if 2 is added to the 1056, we get remainder 0.
Therefore solution is 2
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The telephone bill of a certain establishment is party fixed and partly varies as the number of calls consumed. When in a certain month 540 calls made the bill is Rs.1800. In another month 620 calls are consumed then the bill becomes Rs.2040. In another month 500 units are consumed due to more holidays. The bill for that month would be :

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