Question
P5.ST.JC.18121200-A1
The average cost of 4 textbooks is $70.
The average cost of 3 textbooks is $40.
What is the cost of 4th book?
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Primary 5 STRATEGIES P5.ST.JC.18121200

01 Jul 2024, 02:31 AM

The average cost of 4 textbooks is $70.
The average cost of 3 textbooks is $40.
What is the cost of 4th book?
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