PSLE Flynn spent
13 of his money to buy 3 identical staplers. He spent the rest of his money to buy another 5 such staplers and 3 identical notebooks.
- What fraction of Flynn's money was spent to buy the 3 notebooks? Give your answer in the simplest form.
- For every 4 notebooks bought, 1 additional notebook was given free. How many notebooks would Flynn get in total if he were to spend all his money to buy notebooks only?
(a)
Cost of 3 staplers =
13 of his money
Cost of 1 stapler
=
13 ÷ 3
=
13 x
13 =
19 of his money
Fraction of Flynn's money spent to buy the 5 staplers and 2 notebooks
= 1 -
13 =
23 Cost of 5 staplers
= 5 x
19 =
59 of his money
Fraction of Flynn's money spent to buy the 3 notebooks
=
23 -
59 =
69 -
59 =
19 (b)
19 of Flynn's money = 3 notebooks
99 of Flynn's money = 9 x 3 = 27 notebooks
Number of free notebooks
= 27 ÷ 4
= 5 r 2
Total number of notebooks that Flynn would get
= 27 + 5
= 32
Answer(s): (a)
19; (b) 32