Adam has some paint.
He uses
34 of it to paint 2 cabinets and 5 cupboards.
The amount of paint needed to paint a cupboard is 2 times that of a cabinet.
- How many cabinets can he paint using the remaining paint?
- How many cupboards can he paint using the remaining paint?
|
Cabinets |
Cupboards |
Number |
2 |
5 |
Value |
1 u |
2 u |
Total value |
2 u |
10 u |
(a)
Paint needed for 1 cabinet = 1 u
Paint needed for 1 cupboard = 2 u
Paint needed for 2 cabinets and 5 cupboards
= 2 x 1 u x 5 x 2 u
= 2 u + 10 u
= 12 u
34 of the paint = 12 u
14 of the paint = 12 u ÷ 3 = 4 u
Fraction of the remaining paint left
= 1 -
34=
14 14 of the paint = 1 x 4 u = 4 u
Remaining paint left = 4 u
Number of cabinets that Adam can paint with the remaining paint
= 4 u ÷ 1 u
= 4
(b)
Number of cupboards that Adam can paint with the remaining paint
= 4 u ÷ 2 u
= 2
Answer(s): (a) 4; (b) 2