PSLE Caden spent
49 of his money to buy 5 identical pens. He spent the rest of his money to buy another 6 such pens and 4 identical notebooks.
- What fraction of Caden's money was spent to buy the 4 notebooks? Give your answer in the simplest form.
- For every 5 notebooks bought, 1 additional notebook was given free. How many notebooks would Caden get in total if he were to spend all his money to buy notebooks only?
(a)
Cost of 5 pens =
49 of his money
Cost of 1 pen
=
49 ÷ 5
=
49 x
15 =
445 of his money
Cost of 6 pens
= 6 x
445 =
2445 of his money
Fraction of Caden's money spent to buy the 6 pens and 2 notebooks
= 1 -
49 =
59 Fraction of Caden's money spent to buy the 4 notebooks
=
59 -
2445 =
2545 -
2445 =
145 (b)
145 of Caden's money = 4 notebooks
4545 of Caden's money = 45 x 4 = 180 notebooks
Number of free notebooks
= 180 ÷ 5
= 30 r 0
Total number of notebooks that Caden would get
= 180 + 30
= 210
Answer(s): (a)
145; (b) 210