PSLE Ivan used
59 of his money to buy 10 files. He used the rest of his money to buy 7 files and 2 pens.
- What fraction of his money did Ivan use to buy the 2 pens?
- If 1 pen was given for free for every 5 pens bought, how many pens would Ivan be able to buy if he were to use all his money to buy pens?
(a)
Fraction of his money used to buy 7 files and 2 pens
= 1 -
59 =
49 10 files →
59 of his money
1 pen →
59 ÷ 10 =
118 of his money
7 files → 7 x
118 =
718 of his money
7 files + 2 pens →
49 of his money
2 pens →
49 -
718 =
818 -
718 =
118 of his money
(b)
2 pens →
1181 pen →
118 ÷ 2 =
136 of his money
If 1 pen cost
136 of his money, Ivan could buy 36 pens (Not including the free ones).
Number of free pens that Ivan could get
= 36 ÷ 5
= 7 r 1
Total number of pens that Ivan could get
= 36 + 7
= 43
Answer(s): (a)
118; (b) 43