MBA Exam

The time taken by A to complete a work is 4 days more than the time taken by A and B together,and 5 days more than the time taken by A and C together.If the efficiencies of B and C are in the ratio 2:3,then A will complete the wrk in

1) 10
2) 15
3) 16
4) 20

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MBA Other Question
The expression f(x) is cubic in x in which coefficient of x^3 is 1. If f(1)=5, f(2)=8, f(3)=11, find f(4)?

1) 14
2) 20
3) 22
4) 26
 What is the maximum number that one cannot obtain as a linear combination of 9 and 20?

1) 171
2) 151
3) 141
4) 145
5) 155