MBA Exam

If f (x) = f (x â€“ 1) + f (x + 1), where f (10) = 6 and f (20) = 2 f (21), then f (16) =post your answer..Please give your approach as well..

1) -6
2) 6
3) 3
4) -3

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MBA Other Question

A total of 768 balls are arranged in a pile in 9 layers. the nth layer from the top where 3<=n<=9 has as many balls as the sum of number of balls in all the layers above it. Find the number of the total numbers of balls in 6th and 7th layers from the top

1) 72
2) 144
3) 288
4) 216
5) NOT
If the selling price of 10 apples is equal to the cost price of 14 apples, which, in turn is equal to one-third of the total discount offered upon 70 apples. Then find the profit / loss percentage when the mark-up percentage is halved and the discount percentage is decreased by 5 percentage points.

1) 12.5% profit
2) 20% profit
3) 7.5% loss
4) 12.5% loss
5) 10% loss