Bullet Train X and Bullet Train Y had a total of 150 passengers. When 27 passengers from Bullet Train X moved to Bullet Train Y, Bullet Train X had 4 times as many passengers as Bullet Train Y. How many passengers were there in Bullet Train X at first?
| |
Bullet Train X |
Bullet Train Y |
Total |
| Before |
4 u + 27 |
1 u - 27 |
150 |
| Change |
- 27 |
+ 27 |
|
| After |
4 u |
1 u |
150 |
Total number of passengers
= 1 u + 4 u
= 5 u
5 u = 150
1 u = 150 ÷ 5 = 30
Number of passengers in Bullet Train X at first
= 4 u + 27
= 4 x 30 + 27
= 120 + 27
= 147
Answer(s): 147
