There are thrice as many gold coats as silver coats in a sale. If there are 200 gold and silver coats altogether,
- how many gold coats are there?
- how many more gold coats than silver coats?
(a)
Number of silver coats = 1 u
Number of gold coats
= 3 x 1 u
= 3 u
Total number of coats
= 3 u + 1 u
= 4 u
4 u = 200
1 u = 200 ÷ 4 = 50
Number of gold coats
= 3 u
= 3 x 50
= 150
(b)
Number of more gold coats than silver coats
= 3 u - 1 u
= 2 u
= 2 x 50
= 100
Answer(s): (a) 150; (b) 100