Question
The train service was disrupted due to an accident after
a travel of 30 km. The speed was reduced to four-fifths of the original speed. This caused a delay of 45 min. If the accident had happened 20 km farther, it would have been running late for 36 min. What was the original speed of the train?Solution
Let the speed of the train be x. We know that. ⇒ Speed = Distance/Time Speed after accident = 4/5 of x = 4x/5 According to the question, The time difference in covering 20 km due to change in speed = 45 - 36 = 9 min 20/(4x/5) -(20/x) =9/60 100/4x)-20/x=9/60 ⇒ x = 33.33 km/h ∴ The original speed of the train is 33.33 Km/h.
What is the upper limit for loans provided to small entrepreneurs under the Pradhan Mantri Mudra Yojana?Â
"Shoolini Fair" is celebrated in which Indian state?
The headquarters of CSIR is located in:
India participated in the 44th session of the Codex Committee on Nutrition and Foods for Special Dietary Uses (CCNFSDU) in which country?
At the Paris Summer Olympics, in which event did Swapnil Kusale win his first Olympic bronze medal?
Tusu Festival is celebrated in which of the following states?
 In which of these Indian cities was the first Madame Tussauds Wax Museum inaugurated?
Which country initiated the idea to celebrate International Mother Language Day?
In Uttarakhand, the Pradhan Mantri Krishi Sinchai Yojana (PMKSY) receives _______ percent of its funding from the central government
The Hemis National Park is located in-
Relevant for Exams:
