Tuesday, September 21, 2010

Fraction P6 20010 SA2 ACS P2 Q13

Zhang packed some beads into 14 small boxes and 15 big boxes. There were equal number of beads in each small box and equal number of beads in each big box. Each big box contained 5 more beads than each small box. 3/8 of the beads were packed in small boxes. How many beads were there in each small box? (Ans: 9)


15 x 5 = 75

5 x 14 u --> 3 x (15 u + 75)

70 u --> 45 u + 225

25 u --> 225

1 u --> 225/25 = 9 beads

There were 9 beads.

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