Question

a trader bears a loss of 10% by selling 20 needless for a rupee. How many needless should he sell for a rupee in order to earn a profit of 20%?

Answer 1

Answer:

now he should sell 15 needles for a rupee 1

Step-by-step explanation:

Cost price=1/20×100/90

=1/18

now he want to sell at 20% profit

so selling price= 1/18×120/100

=1/15

Answer 2

Answer:

15 IS THE CORRECT ANSWER.......