Fill in the blanks in units in whole numbers or decimals.
Adam spends 90% of his money on food and
80% of the remainder on rental.
Let the total amount of money be 10 u.
- Amount that Adam spends on food = _____ u
- Amount that Adam has left after spending on food = _____ u
- Amount that Adam spends on rental = _____ u
- Amount that Adam has left in the end = _____ u
(a)
Change percentage into units.
90% =
90100 =
910 Total amount that Adam has = 10 u
Amount that Adam spends on food = 9 u
(b)
Amount that Adam has left after spending on food
= 10 u - 9 u
= 1 u
(c)
Amount that Adam spends on rental
= 80% x 1 u
=
80100 x 1 u
= 0.8 x 1 u
= 0.8 u
(d)
Amount that Adam has left
= 1 u - 0.8 u
= 0.2 u
Answer(s): (a) 9; (b) 1; (c) 0.8; (d) 0.2