M4maths Maths Puzzle Numerical Ability Permutation and Combination

A packet of toffee contains 57 toffees. The cost of packet is 44 rupee but every toffee is sold in 1 rupee separately. Find the percentage profit on selling the toffees one by one relative to sell the packet.

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M4maths Other Question

1,6,7,13,20,33,..... find sum of first 52 terms??? if selling price is double , the profit triple . find the profit percentage ?