Question
One king melon cost 3 times as much as one mangosteen. Mrs Zhang bought 3 king melons and 4 mangosteens for $16.50. How much would 7 king melons and 8 mangosteens cost? Express the answers to 2 decimal places.
3 m

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One king melon cost 3 times as much as one mangosteen. Mrs Zhang bought 3 king melons and 4 mangosteens for $16.50. How much would 7 king melons and 8 mangosteens cost? Express the answers to 2 decimal places.