Question

9 apples and 9 bananas cost £2.43 altogether. The total cost of 2 apples and 3 bananas is £0.69. Calculate the cost of an apple and a banana.​

Answer 1

Answer: 0.27£

Explanation:

9 apples + 9 bananas = 2.43
9(apple + banana) = 2.43
Apple + banana = 2.43/9
Apple + banana = 0.27£

Therefore, the cost of an apple AND a banana is 0.27£

Answer 2

Answer:

• Apple - £0.12
• Banana - £0.15

Step-by-step explanation:

Given

• 9 apples and 9 bananas cost £2.43
• 2 apples and 3 bananas cost £0.69

To find

• Cost of an apple and a banana

Solution

• Apple  = a
• Banana = b

Equations

• 9a + 9b = 2.43 ⇒ a + b = 2.43/9= 0.27
• 2a + 3b = 0.69 ⇒ 2(a + b) + b = 0.69 ⇒ 2*0.27 + b = 0.69 ⇒ b = 0.15
• a = 0.27 - 0.15 = 0.12

So the answer

• Cost of apple =  £0.12
• Cost of banana = £0.15