6. A customer paid Ksh 5880 for a suit after she was allowed a discount of \( 2 \% \) on the selling price. If the discount had not been allowed, the shopkeeper would have made a profit of \( 20 \% \) on the sale of the suit. Calculate the price at which th shopkeeper bought the suit. ( 3 marks)
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To calculate the price at which the shopkeeper bought the suit, we first need to find the selling price before the discount. If the customer paid Ksh 5880 after a 2% discount, we can represent the selling price (SP) as: \[ 0.98 \cdot SP = 5880 \] From this, we find the selling price: \[ SP = \frac{5880}{0.98} = 6000 \text{ Ksh} \] Now, the selling price (6000 Ksh) reflects a 20% profit over the cost price (CP). Therefore, we can express this relationship as: \[ SP = CP + 0.2 \cdot CP = 1.2 \cdot CP \] To find the cost price: \[ CP = \frac{SP}{1.2} = \frac{6000}{1.2} = 5000 \text{ Ksh} \] Thus, the price at which the shopkeeper bought the suit is **Ksh 5000**.