Question
One watermelon cost 2 times as much as one chikoo. Mrs Zhang bought 4 watermelons and 2 chikoos for $12.80. How much would 9 watermelons and 10 chikoos cost? Express the answers to 2 decimal places.
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One watermelon cost 2 times as much as one chikoo. Mrs Zhang bought 4 watermelons and 2 chikoos for $12.80. How much would 9 watermelons and 10 chikoos cost? Express the answers to 2 decimal places.