Bullet Train V and Bullet Train W had a total of 145 passengers. When 20 passengers from Bullet Train V moved to Bullet Train W, Bullet Train V had 4 times as many passengers as Bullet Train W. How many passengers were there in Bullet Train V at first?
| |
Bullet Train V |
Bullet Train W |
Total |
| Before |
4 u + 20 |
1 u - 20 |
145 |
| Change |
- 20 |
+ 20 |
|
| After |
4 u |
1 u |
145 |
Total number of passengers
= 1 u + 4 u
= 5 u
5 u = 145
1 u = 145 ÷ 5 = 29
Number of passengers in Bullet Train V at first
= 4 u + 20
= 4 x 29 + 20
= 116 + 20
= 136
Answer(s): 136
