- A180 km/h
- B108 km/h
- C72 km/h
- D90 km/h
Step-by-Step Solution
Sum of speeds m/ → slower m/, faster m/ km/h. (180 km/h is the combined speed.)
Answer: B) 108 km/h
One train is 50% faster than another. Their lengths are 120 m and 180 m, and running in opposite directions they cross in 6 seconds. What is the faster train's speed?
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