Agnes and Mabel had a total of 720 beads. After Agnes had given Mabel 72 beads, Agnes had 1/5 as many beads as Mabel. How many beads did Mabel have at first?
Solution
(After)
Agnes ----- 1 unit
Mabel ----- 5 units
Total 6 units ----- 720
1 unit ----- 720 divided by 6 = 120
Mabel at first
5 units – 72 ----- (120 x 5) – 72 = 528
Answer: Mabel had 528 at first.
Tuesday, August 05, 2008
Ai Tong School P5 CA2 2006 Math Q36
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