Question

1kg of apples costs £1.12 more than 1 kg of pears.

1kg of apples costs £2.35 less than 1 kg of bananas.
Jackson buys 3 kg of apples, 3 kg of pears and 2 kg of bananas. The total cost is £25.02
How much does 1 kg of apples cost?

Answer 1

• 1 kg of apples cost £2.96

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Let the cost of a 1 kg of apples be x.

Then pear costs x - 1.12 and banana costs x + 2.35.

The total cost is 25.02:

• 3x + 3(x - 1.12) + 2(x + 2.35) = 25.02
• 3x + 3x - 3.36 + 2x + 4.7 = 25.02
• 8x + 1.34 = 25.02
• 8x = 25.02 - 1.34
• 8x = 23.68
• x = 23.68/8
• x = 2.96