Tank G contained 3 times as many guppies as Tank H. When 50% of the guppies in Tank G and 10% of the guppies in Tank H were transferred to Tank J, Tank J had 240 guppies, which was 25% more guppies than before. How many more guppies were there in Tank J than Tank H in the end?
|
Tank G |
Tank H |
Tank J |
Before |
3 u |
1 u |
4x1.6 = 6.4 u |
Change |
- 1.5 u |
- 0.1 u |
+ 1x1.6 = + 1.6 u |
After |
1.5 u |
0.9 u |
5x1.6 = 8 u |
Number of guppies that were transferred from Tank G to Tank J
= 50% x 3 u
=
50100 x 3 u
= 1.5 u
Number of guppies that were transferred from Tank H to Tank J
= 10% x 1 u
=
10100 x 1 u
= 0.1 u
25% =
25100 =
14Some guppies from Tank G and Tank H were transferred to Tank J. The total number of guppies transferred from Tank G and Tank H into Tank J is the same.
Total number of guppies transferred from Tank G and Tank H into Tank J
= 1.5 u + 0.1 u
= 1.6 u
8 u = 240
1 u = 240 ÷ 8 = 30
Number of more guppies in Tank J than Tank H
= 8 u - 0.9 u
= 7.1 u
= 7.1 x 30
= 213
Answer(s): 213