CAT Exam

What is the sum of all positive two-digit integers that are divisible by each of their digits.
A)690 B)630 C)480 D)520 E)590

Read Solution (Total 1)

ans) 630

the two digit numbers which are divisible by each of their digits are
11,12,15,22,24,33,36,44,48,55,66,77,88,99
sum of these numbers is 630
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CAT Other Question

Given a sequence of six strictly increasing positive integers such that each number (besides the first) is a multiple of the one before it and the sum of all six numbers is 79, what is the largest number in the sequence? A man can feed himself for a certain number of days with Rs.1200. If his cost per day increases by Rs.20, he can feed himself for 30 days less. Find the number of days he used to feed himself earlier.