PSLE Dylan used
47 of his money to buy 12 pens. He used the rest of his money to buy 8 pens and 3 notebooks.
- What fraction of his money did Dylan use to buy the 3 notebooks?
- If 1 notebook was given for free for every 5 notebooks bought, how many notebooks would Dylan be able to buy if he were to use all his money to buy notebooks?
(a)
Fraction of his money used to buy 8 pens and 3 notebooks
= 1 -
47 =
37 12 pens →
47 of his money
1 pen →
47 ÷ 12 =
121 of his money
8 pens → 8 x
121 =
821 of his money
8 pens + 3 notebooks →
37 of his money
3 notebooks →
37 -
821 =
921 -
821 =
121 of his money
(b)
3 notebooks →
1211 notebook →
121 ÷ 3 =
163 of his money
If 1 notebook cost
163 of his money, Dylan could buy 63 notebooks (Not including the free ones).
Number of free notebooks that Dylan could get
= 63 ÷ 5
= 12 r 3
Total number of notebooks that Dylan could get
= 63 + 12
= 75
Answer(s): (a)
121; (b) 75