Adam has some paint.
He uses
511 of it to paint 3 tables and 4 gates.
The amount of paint needed to paint a gate is 3 times that of a table.
- How many tables can he paint using the remaining paint?
- How many gates can he paint using the remaining paint?
|
Tables |
Gates |
Number |
3 |
4 |
Value |
1 u |
3 u |
Total value |
3 u |
12 u |
(a)
Paint needed for 1 table = 1 u
Paint needed for 1 gate = 3 u
Paint needed for 3 tables and 4 gates
= 3 x 1 u x 4 x 3 u
= 3 u + 12 u
= 15 u
511 of the paint = 15 u
111 of the paint = 15 u ÷ 5 = 3 u
Fraction of the remaining paint left
= 1 -
511=
611 611 of the paint = 6 x 3 u = 18 u
Remaining paint left = 18 u
Number of tables that Adam can paint with the remaining paint
= 18 u ÷ 1 u
= 18
(b)
Number of gates that Adam can paint with the remaining paint
= 18 u ÷ 3 u
= 6
Answer(s): (a) 18; (b) 6