Question
One durian cost 4 times as much as one apple. Mrs Zhang bought 2 durians and 3 apples for $19.60. How much would 6 durians and 7 apples cost? Express the answers to 2 decimal places.
3 m

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One durian cost 4 times as much as one apple. Mrs Zhang bought 2 durians and 3 apples for $19.60. How much would 6 durians and 7 apples cost? Express the answers to 2 decimal places.