Bello buys an old bicycle for 9 200 00 and spen... - JAMB Mathematics 2023 Question

The gain percent can be calculated using the following formula:

\[ \text{Gain Percent} = \left( \frac{\text{Profit}}{\text{Cost Price}} \right) \times 100 \]

First, let's calculate the profit. The profit is the difference between the selling price (SP) and the total cost price (CP), where the total cost price is the sum of the original cost price and any additional expenses.

\[ \text{Profit} = \text{SP} - \text{Total CP} \]

Given:
- Cost Price (CP) = N9,200.00 (original cost of the bicycle)
- Additional Expenses = N1,500.00 (repairs)

\[ \text{Total CP} = \text{CP} + \text{Additional Expenses} = 9,200 + 1,500 = N10,700.00 \]

\[ \text{Profit} = \text{SP} - \text{Total CP} = 13,400 - 10,700 = N2,700.00 \]

Now, plug these values into the gain percent formula:

\[ \text{Gain Percent} = \left( \frac{2,700}{10,700} \right) \times 100 \]

\[ \text{Gain Percent} \approx 25.23\% \]

Therefore, Bello's gain percent is approximately 25.23%.