MBA Exam

There are 3 inlet taps and 1 outlet tap with diameters 8, 6, 2 (cms – inlet taps) and 4 cm respectively. The rate of flow of oil is directly proportional to the square of the radius of the tap. It takes 9 minutes for the smallest tap to fill an empty tank. What is the time taken to fill an empty tank when all the taps (inlet + outlet) are kept open?

1) 8/22 minutes
2) 9/22 minutes
3) 12/22 minutes
4) 13/22 minutes
5) 7/22 minutes

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MBA Other Question
Grass in lawn grows equally
thick and in a uniform rate. It takes 40 days for 40 cows and 60 days for 30
cows to eat the whole of the grass. How many days does it take for 20 cows to do
the same?

1) 80
2) 60
3) 120
4) 180
 From a book a number of consecutive pages are missing.The sum of the page numbers of these pages is 9808.How many pages are missing?

1) 30
2) 28
3) 27
4) 32
5) 31