Question

an article was sold for 550 rupees with a profit of 10% what was the cost price

Answer 1

hey here is your answer......

cp = 100 * SP / 100 * SP

= 100 * 550/110

= 500

hope it's help you.....

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Answer 2

Let the Cost Price be Rs a

Selling price = Cost Price + Gain

=> 550 = a + 10 % of a

=> 550 = a + 10a/100

=> 550 = a + a/ 10

=> 550 = 11a /10

=> a = 550× 10 / 11

=> a = 50 × 10

=> a = 500

Cost Price = Rs 500