Adam has some paint.
He uses
59 of it to paint 2 desks and 4 tables.
The amount of paint needed to paint a table is 2 times that of a desk.
- How many desks can he paint using the remaining paint?
- How many tables can he paint using the remaining paint?
|
Desks |
Tables |
Number |
2 |
4 |
Value |
1 u |
2 u |
Total value |
2 u |
8 u |
(a)
Paint needed for 1 desk = 1 u
Paint needed for 1 table = 2 u
Paint needed for 2 desks and 4 tables
= 2 x 1 u x 4 x 2 u
= 2 u + 8 u
= 10 u
59 of the paint = 10 u
19 of the paint = 10 u ÷ 5 = 2 u
Fraction of the remaining paint left
= 1 -
59=
49 49 of the paint = 4 x 2 u = 8 u
Remaining paint left = 8 u
Number of desks that Adam can paint with the remaining paint
= 8 u ÷ 1 u
= 8
(b)
Number of tables that Adam can paint with the remaining paint
= 8 u ÷ 2 u
= 4
Answer(s): (a) 8; (b) 4