There are thrice as many black coats as pink coats in a sale. If there are 148 black and pink coats altogether,
- how many black coats are there?
- how many more black coats than pink coats?
(a)
Number of pink coats = 1 u
Number of black coats
= 3 x 1 u
= 3 u
Total number of coats
= 3 u + 1 u
= 4 u
4 u = 148
1 u = 148 ÷ 4 = 37
Number of black coats
= 3 u
= 3 x 37
= 111
(b)
Number of more black coats than pink coats
= 3 u - 1 u
= 2 u
= 2 x 37
= 74
Answer(s): (a) 111; (b) 74