There are 147 balls in Betty's collection. The number of her blue balls is 6 times the number of her green balls.
- How many green balls does she have?
- How many blue balls does she have?
(a)
Number of green balls = 1 u
Number of blue balls = 6 u
Total number of balls
= 1 u + 6 u
= 7 u
7 u = 147
1 u = 147 ÷ 7 = 21
Number of green balls
= 1 u
= 21
(b)
Number of blue balls
= 6 u
= 6 x 21
= 126
Answer(s): (a) 21; (b) 126