4. Oketch sells his car to Jane and makes a profit of \( 17 \% \). Jane sells the same car to Issa at \( \mathrm{Sh} .300,000 \), making a loss of \( 10 \% \). Determine the price at which Oketch bought the car. \( \quad \) ( 3 marks)
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To find the price at which Oketch bought the car, let's denote the purchase price as \( P \). When Oketch sells the car to Jane at a profit of \( 17\% \): \[ \text{Selling Price to Jane} = P + 0.17P = 1.17P \] Now Jane sells the car to Issa for \( \mathrm{Sh} .300,000 \) at a loss of \( 10\% \). Thus: \[ \text{Selling Price to Issa} = 1.10 \times \text{Cost Price for Jane} = 0.90 \times \text{Selling Price to Jane} \] Given that Jane's selling price is \( 0.90 \times 1.17P = \mathrm{Sh}.300,000 \): \[ 0.90 \times 1.17P = 300,000 \] Now, solving for \( P \): \[ 1.053P = 300,000 \] \[ P = \frac{300,000}{1.053} \approx 284,112.66 \] So, Oketch bought the car for approximately \( \mathrm{Sh} .284,113 \).