There are 285 marbles in Joelle's collection. The number of her green marbles is 2 times the number of her blue marbles.
- How many blue marbles does she have?
- How many green marbles does she have?
(a)
Number of blue marbles = 1 u
Number of green marbles = 2 u
Total number of marbles
= 1 u + 2 u
= 3 u
3 u = 285
1 u = 285 ÷ 3 = 95
Number of blue marbles
= 1 u
= 95
(b)
Number of green marbles
= 2 u
= 2 x 95
= 190
Answer(s): (a) 95; (b) 190