Question

9. A dealer bought 100 cricket bats for 3 400 each. He sells 20 of them at a gain of 5%. At what gain per
cent must he sell the remaining bats so as to gain 20% on the whole?
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Answer 1

Answer:

Total cost of 100 cricket bats is +100*40= Rs 4000/-

Sells 20 bats at a gain of 5% that is 40+5% of 40= Rs 42/-

20% profit on the whole means 4000+20% of 4000= 4000+800=4800/-

He has already sold 20 bats @ i.e.20*42=840/-

Therefore he needs to sell the remaining bats at 3960/-, i.e. 49.50 each

Profit = 40-49.5=9.5

In percentage terms 9.5/40*100=23.75%