There are thrice as many grey vests as purple vests in a sale. If there are 192 grey and purple vests altogether,
- how many grey vests are there?
- how many more grey vests than purple vests?
(a)
Number of purple vests = 1 u
Number of grey vests
= 3 x 1 u
= 3 u
Total number of vests
= 3 u + 1 u
= 4 u
4 u = 192
1 u = 192 ÷ 4 = 48
Number of grey vests
= 3 u
= 3 x 48
= 144
(b)
Number of more grey vests than purple vests
= 3 u - 1 u
= 2 u
= 2 x 48
= 96
Answer(s): (a) 144; (b) 96