Adam has some paint.
He uses
1112 of it to paint 5 desks and 10 tables.
The amount of paint needed to paint a table is 5 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 |
5 |
10 |
Value |
1 u |
5 u |
Total value |
5 u |
50 u |
(a)
Paint needed for 1 desk = 1 u
Paint needed for 1 table = 5 u
Paint needed for 5 desks and 10 tables
= 5 x 1 u x 10 x 5 u
= 5 u + 50 u
= 55 u
1112 of the paint = 55 u
112 of the paint = 55 u ÷ 11 = 5 u
Fraction of the remaining paint left
= 1 -
1112=
112 112 of the paint = 1 x 5 u = 5 u
Remaining paint left = 5 u
Number of desks that Adam can paint with the remaining paint
= 5 u ÷ 1 u
= 5
(b)
Number of tables that Adam can paint with the remaining paint
= 5 u ÷ 5 u
= 1
Answer(s): (a) 5; (b) 1