WAEC - Mathematics (2015 - No. 37)
A trader bought 100 oranges at 5 for N40.00 and sold them at 20 for N120.00. Find the profit or loss percent
20% profit
20% loss
25% profit
25% loss
説明
Cost price CP of the 100 oranges = \(\frac{100}{5}\) x N40.00
selling price SP of the 100 oranges = \(\frac{100}{20}\) x N120
= N600.00
so, profit or loss per cent
= \(\frac{SP - CP}{CP}\) x 100%
= \(\frac{600 - 800}{800}\) x 100%
= \(\frac{-200}{800}\) x 100%
Hence, loss per cent = 25%
selling price SP of the 100 oranges = \(\frac{100}{20}\) x N120
= N600.00
so, profit or loss per cent
= \(\frac{SP - CP}{CP}\) x 100%
= \(\frac{600 - 800}{800}\) x 100%
= \(\frac{-200}{800}\) x 100%
Hence, loss per cent = 25%