Question
P5.ST.JC.18121201-A2
The average cost of four books is $70.
Three of the books cost $50, $80 and $60.
What is the cost of the 4th book?
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Primary 5 STRATEGIES P5.ST.JC.18121201

19 May 2024, 09:38 AM

The average cost of four books is $70.
Three of the books cost $50, $80 and $60.
What is the cost of the 4th book?
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