Find th 7. 70% of the students in a school are boys and the number of girls is 504. numbers of boys.
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Let the total number of students be x. Then, 30% of x = 504. Therefore, there are 1176 boys in the school.
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Correct option is B)
⇒ Market price of article is Rs.280.
⇒ Discount = 10% of 280 = Rs.28
⇒ Selling price = 280−28=Rs.252
⇒ Profit is 26%.
⇒ Let C.P. be x.
⇒ Selling price = Cost price + Profit.
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