Tank G contained 4 times as many guppies as Tank H. When 40% of the guppies in Tank G and 40% of the guppies in Tank H were transferred to Tank J, Tank J had 300 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 = 8 u |
Change |
- 1.6 u |
- 0.4 u |
+ 1x2 = + 2 u |
After |
2.4 u |
0.6 u |
5x2 = 10 u |
Number of guppies that were transferred from Tank G to Tank J
= 40% x 4 u
=
40100 x 4 u
= 1.6 u
Number of guppies that were transferred from Tank H to Tank J
= 40% x 1 u
=
40100 x 1 u
= 0.4 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
= 1.6 u + 0.4 u
= 2 u
10 u = 300
1 u = 300 ÷ 10 = 30
Number of less guppies in Tank H than Tank G
= 2.4 u - 0.6 u
= 1.8 u
= 1.8 x 30
= 54
Answer(s): 54