Container H and Container J had 39 kg of chicken powder and 113.4 kg of chicken powder respectively. If 2 kg of chicken powder and 7.8 kg of chicken powder are added into Container H and Container J every day, how many days later will the chicken powder in Container H be one-third as much as the chicken powder in Container J?
|
Make p the same (1)x3 = (3) |
Container H (1) |
Container J (2) |
Before |
117 |
39 |
113.4 |
Change |
+ 6 u |
+ 2 u |
+ 7.8 u |
After |
3 p |
1 p |
3 p |
39 + 2 u = 1 p --- (1)
113.4 + 7.8 u =
3 p --- (2)
Make p the same.
(1)
x3 = (3)
117 + 6 u =
3 p --- (3)
(2) = (3)
113.4 + 7.8 u = 117 + 6 u
7.8 u - 6 u = 117 - 113.4
1.8 u = 3.6
1 u = 3.6 ÷ 1.8 = 2
Time taken for the chicken powder in Container H to be one-third as much as the chicken powder in Container J = 2
Answer(s): 2