A person buys certain number of marbles at 20 per taka and an equal number at 30 per taka. He mixes them and sells them at 25 per taka. His gain or loss in the transaction is-
Created: 2 months ago |
Updated: 2 months ago
best des
cost of each marble at 20 per taka = 1/20
cost of each marble at 30 per taka = 1/30
average cost of marble = (1/20+1/30)/2 = 1/24
selling price of mixed marble = 1/25
loss percentage = {(1/24-1/25)/1/24}100 = 4%
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