PSLE Sean used
35 of his money to buy 6 staplers. He used the rest of his money to buy 3 staplers and 2 files.
- What fraction of his money did Sean use to buy the 2 files?
- If 1 file was given for free for every 6 files bought, how many files would Sean be able to buy if he were to use all his money to buy files?
(a)
Fraction of his money used to buy 3 staplers and 2 files
= 1 -
35 =
25 6 staplers →
35 of his money
1 pen →
35 ÷ 6 =
110 of his money
3 staplers → 3 x
110 =
310 of his money
3 staplers + 2 files →
25 of his money
2 files →
25 -
310 =
410 -
310 =
110 of his money
(b)
2 files →
1101 file →
110 ÷ 2 =
120 of his money
If 1 file cost
120 of his money, Sean could buy 20 files (Not including the free ones).
Number of free files that Sean could get
= 20 ÷ 6
= 3 r 2
Total number of files that Sean could get
= 20 + 3
= 23
Answer(s): (a)
110; (b) 23