MBA Exam

A - set of natural numbers such that:1) each element gives remainder 2 when divided by 42) each element is divisible by 11 & not 13.The no. of elements in set A are:

1) 15
2) 17
3) 19
4) 18

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MBA Other Question
Rahul is feeding the first ‘n’ natural numbers into a computer program that calculates their average. In a hurry, he skips one of the numbers ‘x’. The program now calculates the average as 1110/11.What is the value of ‘n’? 1-112-123-234-275-None of these

1) 1
2) 2
3) 3
4) 4
5) 5
 Aman, Baman and Chaman can finish a job working alone in 15, 20 and 25 days respectively.However, while working with somebody the efficiency of Aman, Baman and Chaman reduces by 30%, 20% and 50% respectively. If none of them is allowed to work for three consecutive days, then what is the maximum possible fraction of the job that they can complete in four days?

1) 1/3
2) 3/10
3) 8/25
4) 17/50
5) 19/50