Let a number of three digits have for its middle digit the sum of the other two digits. Then it is a multiple… · ABC26GN0252

Subject: General Aptitude · Chapter: Number System · Exam: C.P.F. 2008

Let a number of three digits have for its middle digit the sum of the other two digits. Then it is a multiple of

(a)10

(b)11

(c)18

(d)50

Answer

Answer (as printed): B

Explanation

We know that a number having $x, y, z$ as its digits, is a multiple of 11 , if $z+x-y=0$ Hence, $y=z+x$.

Explanation as extracted from the printed page; notation may be imperfect.

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