Questions: Joe and Jeetesh are buying a present for their friend which costs £20. Their contributions will be in the ratio of 1:3. How much will Jeetesh contribute? £ ☐

Joe and Jeetesh are buying a present for their friend which costs £20. Their contributions will be in the ratio of 1:3. How much will Jeetesh contribute? £ ☐
Transcript text: Joe and Jeetesh are buying a present for their friend which costs £20. Their contributions will be in the ratio of 1:3. How much will Jeetesh contribute? £ ☐
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Solution

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△ Determine how much Jeetesh will contribute to the present. ○ Express the total cost in terms of the ratio. ▷ The contributions are in the ratio 1:3, so the total cost corresponds to 4 parts. ☼ If Joe contributes 1 part and Jeetesh contributes 3 parts, the total of 4 parts equals £20. Thus, \( J_1 + J_2 = £20 \), where \( J_1 \) represents 1 part and \( J_2 \) represents 3 parts. ○ Calculate the value of each part. ▷ Divide the total cost by the total number of parts. ☼ The value of 1 part is \( £20 \div 4 = £5 \). ○ Calculate Jeetesh's contribution. ▷ Multiply the value of 1 part by the number of parts Jeetesh contributes. ☼ Jeetesh contributes \( 3 \times £5 = £15 \). ✧ Jeetesh will contribute £15. ☺ Jeetesh will contribute £15.

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