PSLE Tom used
47 of his money to buy 8 pens. He used the rest of his money to buy 5 pens and 4 files.
- What fraction of his money did Tom use to buy the 4 files?
- If 1 file was given for free for every 6 files bought, how many files would Tom be able to buy if he were to use all his money to buy files?
(a)
Fraction of his money used to buy 5 pens and 4 files
= 1 -
47 =
37 8 pens →
47 of his money
1 pen →
47 ÷ 8 =
114 of his money
5 pens → 5 x
114 =
514 of his money
5 pens + 4 files →
37 of his money
4 files →
37 -
514 =
614 -
514 =
114 of his money
(b)
4 files →
1141 file →
114 ÷ 4 =
156 of his money
If 1 file cost
156 of his money, Tom could buy 56 files (Not including the free ones).
Number of free files that Tom could get
= 56 ÷ 6
= 9 r 2
Total number of files that Tom could get
= 56 + 9
= 65
Answer(s): (a)
114; (b) 65