PSLE Ahmad spent
37 of his money to buy 4 identical markers. He spent the rest of his money to buy another 5 such markers and 4 identical pencils.
- What fraction of Ahmad's money was spent to buy the 4 pencils? Give your answer in the simplest form.
- For every 5 pencils bought, 1 additional pencil was given free. How many pencils would Ahmad get in total if he were to spend all his money to buy pencils only?
(a)
Cost of 4 markers =
37 of his money
Cost of 1 marker
=
37 ÷ 4
=
37 x
14 =
328 of his money
Cost of 5 markers
= 5 x
328 =
1528 of his money
Fraction of Ahmad's money spent to buy the 5 markers and 2 pencils
= 1 -
37 =
47 Fraction of Ahmad's money spent to buy the 4 pencils
=
47 -
1528 =
1628 -
1528 =
128 (b)
128 of Ahmad's money = 4 pencils
2828 of Ahmad's money = 28 x 4 = 112 pencils
Number of free pencils
= 112 ÷ 5
= 22 r 2
Total number of pencils that Ahmad would get
= 112 + 22
= 134
Answer(s): (a)
128; (b) 134