Question

A book was sold for a certain sum and there was a loss of 20%. had it been sold for rs. 3 more, then there would have been a profit of 30%. if it was sold for rs. 6.60, then the profit/loss percentage would have been

Answer 1

Cost price = x

SP of 20% loss

SP = CP x 80/100 = 80x/100

SP of 30% profit

SP = 120x/100 = 6.60

According to question

80x/100 + 3 = 120x/100

80x + 300 = 120x

40x = 300

x = 7.5

Cost price of a book = Rs. 7.5

SP(6.6) is less than CP(7.5) so it is loss

Loss = 7.5 - 6.6 = 0.9

0.9/7.5  x 100 = 12% loss

Answer 2

Answer:

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