Adam has some paint.
He uses
310 of it to paint 8 desks and 4 tables.
The amount of paint needed to paint a table is 4 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 |
8 |
4 |
Value |
1 u |
4 u |
Total value |
8 u |
16 u |
(a)
Paint needed for 1 desk = 1 u
Paint needed for 1 table = 4 u
Paint needed for 8 desks and 4 tables
= 8 x 1 u x 4 x 4 u
= 8 u + 16 u
= 24 u
310 of the paint = 24 u
110 of the paint = 24 u ÷ 3 = 8 u
Fraction of the remaining paint left
= 1 -
310=
710 710 of the paint = 7 x 8 u = 56 u
Remaining paint left = 56 u
Number of desks that Adam can paint with the remaining paint
= 56 u ÷ 1 u
= 56
(b)
Number of tables that Adam can paint with the remaining paint
= 56 u ÷ 4 u
= 14
Answer(s): (a) 56; (b) 14