PSLE Ivan used
35 of his money to buy 6 notebooks. He used the rest of his money to buy 3 notebooks 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 3 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 3 notebooks and 2 pens
= 1 -
35 =
25 6 notebooks →
35 of his money
1 pen →
35 ÷ 6 =
110 of his money
3 notebooks → 3 x
110 =
310 of his money
3 notebooks + 2 pens →
25 of his money
2 pens →
25 -
310 =
410 -
310 =
110 of his money
(b)
2 pens →
1101 pen →
110 ÷ 2 =
120 of his money
If 1 pen cost
120 of his money, Ivan could buy 20 pens (Not including the free ones).
Number of free pens that Ivan could get
= 20 ÷ 3
= 6 r 2
Total number of pens that Ivan could get
= 20 + 6
= 26
Answer(s): (a)
110; (b) 26