Tank E contained 3 times as many guppies as Tank F. When 40% of the guppies in Tank E and 40% of the guppies in Tank F were transferred to Tank G, Tank G had 80 guppies, which was 25% more guppies than before. How many more guppies were there in Tank G than Tank F in the end?
|
Tank E |
Tank F |
Tank G |
Before |
3 u |
1 u |
4x1.6 = 6.4 u |
Change |
- 1.2 u |
- 0.4 u |
+ 1x1.6 = + 1.6 u |
After |
1.8 u |
0.6 u |
5x1.6 = 8 u |
Number of guppies that were transferred from Tank E to Tank G
= 40% x 3 u
=
40100 x 3 u
= 1.2 u
Number of guppies that were transferred from Tank F to Tank G
= 40% x 1 u
=
40100 x 1 u
= 0.4 u
25% =
25100 =
14Some guppies from Tank E and Tank F were transferred to Tank G. The total number of guppies transferred from Tank E and Tank F into Tank G is the same.
Total number of guppies transferred from Tank E and Tank F into Tank G
= 1.2 u + 0.4 u
= 1.6 u
8 u = 80
1 u = 80 ÷ 8 = 10
Number of more guppies in Tank G than Tank F
= 8 u - 0.6 u
= 7.4 u
= 7.4 x 10
= 74
Answer(s): 74