Tank G contained 4 times as many guppies as Tank H. When 50% of the guppies in Tank G and 30% of the guppies in Tank H were transferred to Tank J, Tank J had 230 guppies, which was 25% more guppies than before. How many less guppies were there in Tank H than Tank G in the end?
|
Tank G |
Tank H |
Tank J |
Before |
4 u |
1 u |
4x2.3 = 9.2 u |
Change |
- 2 u |
- 0.3 u |
+ 1x2.3 = + 2.3 u |
After |
2 u |
0.7 u |
5x2.3 = 11.5 u |
Number of guppies that were transferred from Tank G to Tank J
= 50% x 4 u
=
50100 x 4 u
= 2 u
Number of guppies that were transferred from Tank H to Tank J
= 30% x 1 u
=
30100 x 1 u
= 0.3 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
= 2 u + 0.3 u
= 2.3 u
11.5 u = 230
1 u = 230 ÷ 11.5 = 20
Number of less guppies in Tank H than Tank G
= 2 u - 0.7 u
= 1.3 u
= 1.3 x 20
= 26
Answer(s): 26