MBA Exam

Out of n consecutive numbers , four numbers are selected such that the differences of all possible pairs are distinct. What is the least value of n for which this is possible?Please give a detailed approach with the answer.

1) 6
2) 7
3) 8
4) 9

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MBA Other Question

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
ABCD is a square of side 6 cm. A regular hexagon is drawn inside the square such that there is at least one vertex on each side of the square. Find the side of the regular hexagon.

1) 2√3
2) 6(√3-1)
3) 3(√3-1)
4) 3(√6-√2)
5) (2√3-√2)