Question
P5.ST.JC.18121200-A1
The average cost of 9 novels is $60.
The average cost of 8 novels is $40.
What is the cost of 9th book?
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Primary 5 STRATEGIES P5.ST.JC.18121200

13 Jun 2024, 12:13 AM

The average cost of 9 novels is $60.
The average cost of 8 novels is $40.
What is the cost of 9th book?
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