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MathematicsUNILORIN Post UTME

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Earlier discussion

1 older comment kept for context.

Ali Benjamin

Let's call the cost price "x".

Since the profit is 10% of the cost price, the profit amount is 10% of x, which is 0.10x.

The selling price is ₦11,000, which is the sum of the cost price and the profit:

₦11,000 = x + 0.10x
₦11,000 = 1.10x

To find the cost price (x), divide both sides by 1.10:

x = ₦11,000 / 1.10
x = ₦10,000

So, the goods cost ₦10,000. (A)