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When a two-digit number is divided by the sum of its digits, the result is . Find the minimum possible value of .
(a)
(b)
(c)
(d)

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Important Questions on Review Tests - Block I
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A one-digit number, which is the ten’s digit of a two-digit number , is subtracted from to give which is the quotient of the division of by the cube of a number. Find the sum of the digits of .

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After Yuvraj hit sixes in an over, Geoffery Boycott commented that Yuvraj just made runs in the over. Harsha Bhogle was shocked and he asked Geoffery which base system was he using? What must have been Geoffery’s answer?

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Find the ten’s digit of the number .

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Find the HCF of and the number '' where '' is a number between and (both included),

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The number of positive integer valued pairs , satisfying and is:

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Let be distinct digits. Consider a two-digit number ‘’ and a three-digit number ‘’ both defined under the usual decimal number system. If and then the value of is:

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The remainder is divided by is:

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Let and be distinct integers, and are odd and positive, and is even and positive. Which one of the following statements can’t be true?
