Question

The cost price and selling price of an article are in the ratio 3:7.if the selling price is 700 find the cost price​

Answer 1

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Let the cost price be x

Selling price given is Rs. 700

Cost price / selling price = 3 / 7

x / 700 = 3 / 7

Cross multiplication

7x = 700 × 3

7x = 2100

x = 2100/7

x = 300

Thus the cost price is Rupees 300