There are 168 balls in Emily's collection. The number of her grey balls is 5 times the number of her white balls.
- How many white balls does she have?
- How many grey balls does she have?
(a)
Number of white balls = 1 u
Number of grey balls = 5 u
Total number of balls
= 1 u + 5 u
= 6 u
6 u = 168
1 u = 168 ÷ 6 = 28
Number of white balls
= 1 u
= 28
(b)
Number of grey balls
= 5 u
= 5 x 28
= 140
Answer(s): (a) 28; (b) 140