MBA Exam Numerical Ability Time Distance and Speed

Two gun shots are fired at an interval of 24 seconds. A man in a submarine travelling towards the source hears the gunshots at an interval of 22 seconds. Determine the speed of sound in water if the submarine was travelling at 40 m/s.

1) 400 m/s
2) 420 m/s
3) 440 m/s
4) 460 m/s

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MBA Other Question

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There are two series of numbers in G.P,each having the same number of terms.The 4th and the 6th term of first series are equal to the 2nd term and the 3rd term of the second series resp.The last term of the second series is 64 times the last term of the series and the 5th term of the first series is 8times the second term of the first series.Find the number of terms present in each of the series.?

1) 8
2) 6
3) 10
4) 9
The product of three natural numbers – N1, N2 and N3 – is twelve times their H.C.F. How many ordered triplets (N1, N2, N3) are possible?

1) 12
2) 15
3) 18
4) 21