Adam has some paint.
He uses
910 of it to paint 9 tables and 6 cupboards.
The amount of paint needed to paint a cupboard is 3 times that of a table.
- How many tables can he paint using the remaining paint?
- How many cupboards can he paint using the remaining paint?
|
Tables |
Cupboards |
Number |
9 |
6 |
Value |
1 u |
3 u |
Total value |
9 u |
18 u |
(a)
Paint needed for 1 table = 1 u
Paint needed for 1 cupboard = 3 u
Paint needed for 9 tables and 6 cupboards
= 9 x 1 u x 6 x 3 u
= 9 u + 18 u
= 27 u
910 of the paint = 27 u
110 of the paint = 27 u ÷ 9 = 3 u
Fraction of the remaining paint left
= 1 -
910=
110 110 of the paint = 1 x 3 u = 3 u
Remaining paint left = 3 u
Number of tables that Adam can paint with the remaining paint
= 3 u ÷ 1 u
= 3
(b)
Number of cupboards that Adam can paint with the remaining paint
= 3 u ÷ 3 u
= 1
Answer(s): (a) 3; (b) 1