The cost price of 10 items is same as the selling price of $N$ items. If the profit is 25%, then the…

A profit of 25 percent means the selling price of one item is $1.25$ times its cost price. Since the cost price of 10 items equals the selling price of $N$ items,…

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The cost price of 10 items is same as the selling price of $N$ items. If the profit is 25%, then the value of $N$ is?

Answer and explanation

Correct answer A

A profit of 25 percent means the selling price of one item is

1.25

times its cost price. Since the cost price of 10 items equals the selling price of

N

items,

10\,\text{CP} = N \times 1.25\,\text{CP}

. Solving gives

N = \frac{10}{1.25} = 8

, so

N = 8

items.

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The cost price of 10 items is same as the selling price of \(N\) items. If the profit is 25%, then the…

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