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NanYang SA 1 paper 2 Question 16

The ratio of Isabellas savings tot Joannas savings was 9:8. Isabella and Joanna shared the cost of buying a birthday present for their grandmother in the ratio of 2:1 respectively. Isabella used up 2/3 of her savings to pay for her share of the present. Joanna was left with $150 after paying her share. (A) How much was Joannas savings? (b) What was the cost of the present?

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