There are 160 marbles in a basket. 0.3 of them are purple marbles, and the rest are pink and gold marbles. If there are 17 as many pink marbles as gold marbles. How many gold marbles are there?
| Purple marbles |
Pink marbles |
Gold marbles |
Total |
| 3 u |
7 u |
10 u |
| |
1 p |
7 p |
|
0.3 =
310 =
310 Fraction of marbles that are pink and gold marbles
= 1 -
310 =
710 Total number of marbles = 10 u
10 u = 160
1 u = 160 ÷ 10 = 16
Number of pink marbles and gold marbles
= 7 u
= 7 x 16
= 112
Number of pink and gold marbles
= 1 p + 7 p
= 8 p
8 p = 112
1 p = 112 ÷ 8 = 14
Number of gold marbles
= 7 p
= 7 x 14
= 98
Answer(s): 98
