Tom travelled 285 km in 6 hours. In his total travelling, he travelled the first part by bus at 40 km/hr and the remaining part by train at 55 km/hr. How much distance has he travelled by train?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 165 km.
Let Tom travel by bus = x hours
40x + 55(6 - x) = 285
40x + 330 - 55x = 285
15x = 45
x = 45/15 = 3
⇒ 6 - x = 6 - 3 = 3
Distance travelled by train = 55 × 3 = 165 km
Therefore, Tom travelled 165 km by train.