Tank F contained 4 times as many guppies as Tank G. When 40% of the guppies in Tank F and 40% of the guppies in Tank G were transferred to Tank H, Tank H had 120 guppies, which was 50% more guppies than before. How many more guppies were there in Tank H than Tank G in the end?
|
Tank F |
Tank G |
Tank H |
Before |
4 u |
1 u |
2x2 = 4 u |
Change |
- 1.6 u |
- 0.4 u |
+ 1x2 = + 2 u |
After |
2.4 u |
0.6 u |
3x2 = 6 u |
Number of guppies that were transferred from Tank F to Tank H
= 40% x 4 u
=
40100 x 4 u
= 1.6 u
Number of guppies that were transferred from Tank G to Tank H
= 40% x 1 u
=
40100 x 1 u
= 0.4 u
50% =
50100 =
12Some guppies from Tank F and Tank G were transferred to Tank H. The total number of guppies transferred from Tank F and Tank G into Tank H is the same.
Total number of guppies transferred from Tank F and Tank G into Tank H
= 1.6 u + 0.4 u
= 2 u
6 u = 120
1 u = 120 ÷ 6 = 20
Number of more guppies in Tank H than Tank G
= 6 u - 0.6 u
= 5.4 u
= 5.4 x 20
= 108
Answer(s): 108