There are 115 balls in Lucy's collection. The number of her red balls is 4 times the number of her white balls.
- How many white balls does she have?
- How many red balls does she have?
(a)
Number of white balls = 1 u
Number of red balls = 4 u
Total number of balls
= 1 u + 4 u
= 5 u
5 u = 115
1 u = 115 ÷ 5 = 23
Number of white balls
= 1 u
= 23
(b)
Number of red balls
= 4 u
= 4 x 23
= 92
Answer(s): (a) 23; (b) 92