PSLE Neave spent
25 of his money to buy 3 identical pencils. He spent the rest of his money to buy another 4 such pencils and 3 identical markers.
- What fraction of Neave's money was spent to buy the 3 markers? Give your answer in the simplest form.
- For every 3 markers bought, 1 additional marker was given free. How many markers would Neave get in total if he were to spend all his money to buy markers only?
(a)
Cost of 3 pencils =
25 of his money
Cost of 1 pencil
=
25 ÷ 3
=
25 x
13 =
215 of his money
Cost of 4 pencils
= 4 x
215 =
815 of his money
Fraction of Neave's money spent to buy the 4 pencils and 2 markers
= 1 -
25 =
35 Fraction of Neave's money spent to buy the 3 markers
=
35 -
815 =
915 -
815 =
115 (b)
115 of Neave's money = 3 markers
1515 of Neave's money = 15 x 3 = 45 markers
Number of free markers
= 45 ÷ 3
= 11 r 1
Total number of markers that Neave would get
= 45 + 11
= 56
Answer(s): (a)
115; (b) 56