Question
P5.ST.JC.18121201-A1
The average cost of three books is $60.
Two of the books cost $20 and $30.
What is the cost of the 3rd book?
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Primary 5 STRATEGIES P5.ST.JC.18121201

17 May 2024, 02:06 AM

The average cost of three books is $60.
Two of the books cost $20 and $30.
What is the cost of the 3rd book?
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