Question

A seller sold two trousers of 900 each. on one ,he gains 10% and the other, he lost 10% . Find total loss or gain.

Answer 1

Find selling price of 2 pairs of trousers:

1 pair of trousers = 900

2 pairs of trousers = 900 x 2 = 1800

.

Find the cost price of the one he sold with a gain of 10%:

100 + 10 = 110%

110% = 900

1% = 8.18

100% = 8.18 x 100 = 810

.

Find the cost price of the one he sold with a loss of 10%:

100 - 10 = 90%

90% = 900

1% = 900 ÷ 90 = 10

100% = 10 x 100 = 1000

.

Find total cost price:

Cost price = 1000 + 818 = 1818

.

Find loss:

loss = 1818 - 1800 = 18

loss percentage = 18/1818 x 100 = 0.99%

.

Answer: The total lost for this transaction is 0.99%