PSLE Mark used
35 of his money to buy 6 files. He used the rest of his money to buy 3 files and 2 staplers.
- What fraction of his money did Mark use to buy the 2 staplers?
- If 1 stapler was given for free for every 3 staplers bought, how many staplers would Mark be able to buy if he were to use all his money to buy staplers?
(a)
Fraction of his money used to buy 3 files and 2 staplers
= 1 -
35 =
25 6 files →
35 of his money
1 pen →
35 ÷ 6 =
110 of his money
3 files → 3 x
110 =
310 of his money
3 files + 2 staplers →
25 of his money
2 staplers →
25 -
310 =
410 -
310 =
110 of his money
(b)
2 staplers →
1101 stapler →
110 ÷ 2 =
120 of his money
If 1 stapler cost
120 of his money, Mark could buy 20 staplers (Not including the free ones).
Number of free staplers that Mark could get
= 20 ÷ 3
= 6 r 2
Total number of staplers that Mark could get
= 20 + 6
= 26
Answer(s): (a)
110; (b) 26