Question

7. The cost price of an article is 90% of its selling price. Find his profit percentage.
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Answer 1

Answer:

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Step-by-step explanation:

Cost price is 90% of selling price

Let SP = x

CP = 90% of x = 90x/100 = 9x/10

SP is greater so profit

profit = sp - cp

= x - 9x/10

= (10x-9x) / 10 = x/10

Profit % = profit/cp * 100

= (x/10) / (9x/10) * 100

= x/9x * 100

= 100/9

= 11 1/9 % = 11.11 % profit