Question
A 150 m long train crosses another 270 m long train
running in the opposite direction in 14 seconds. If the shorter train crosses a pole in 12 seconds, what is the speed of longer train?Solution
Speed of the shorter train = 150/12 = 12.5 m/sec Let the speed of the longer train be x km/hr According to the question, ⇒ (12.5 + x) = (150 + 270)/14 ⇒ 12.5 + x = 420/14 ⇒ x = 30 – 12.5 = 17.5 ⇒ x = 17.5 x 18/5 = 63 km/hr
More Trains Questions
Select the most appropriate meaning of the given idiom. "Go down like a lead balloon"
The atmosphere was tense during the meeting.
- Choose the alternative which is closest to the opposite in meaning of the bold word in the sentence.
Despite his initial hesitation, he gave a luci... 'To decamp' would mean:
Garrulous
The company had to curtail its expenses to avoid bankruptcy.
- Choose the alternative which can replace the bold word without changing the meaning of the sentence.
The lawyer presented a cogent argument in favo... - Choose the alternative which can replace the bold word without changing the meaning of the sentence.
His behavior was eccentric , often puzzling th... His meticulous attention to detail made the project a success.
choose the option which represents a pair of either synonyms or antonyms.
Relevant for Exams:
