PSLE Zeph used
47 of his money to buy 12 pencils. He used the rest of his money to buy 8 pencils and 4 staplers.
- What fraction of his money did Zeph use to buy the 4 staplers?
- If 1 stapler was given for free for every 5 staplers bought, how many staplers would Zeph be able to buy if he were to use all his money to buy staplers?
(a)
Fraction of his money used to buy 8 pencils and 4 staplers
= 1 -
47 =
37 12 pencils →
47 of his money
1 pen →
47 ÷ 12 =
121 of his money
8 pencils → 8 x
121 =
821 of his money
8 pencils + 4 staplers →
37 of his money
4 staplers →
37 -
821 =
921 -
821 =
121 of his money
(b)
4 staplers →
1211 stapler →
121 ÷ 4 =
184 of his money
If 1 stapler cost
184 of his money, Zeph could buy 84 staplers (Not including the free ones).
Number of free staplers that Zeph could get
= 84 ÷ 5
= 16 r 4
Total number of staplers that Zeph could get
= 84 + 16
= 100
Answer(s): (a)
121; (b) 100