There are thrice as many brown coats as white coats in a sale. If there are 124 brown and white coats altogether,
- how many brown coats are there?
- how many more brown coats than white coats?
(a)
Number of white coats = 1 u
Number of brown coats
= 3 x 1 u
= 3 u
Total number of coats
= 3 u + 1 u
= 4 u
4 u = 124
1 u = 124 ÷ 4 = 31
Number of brown coats
= 3 u
= 3 x 31
= 93
(b)
Number of more brown coats than white coats
= 3 u - 1 u
= 2 u
= 2 x 31
= 62
Answer(s): (a) 93; (b) 62