Question
A train with 16 compartments of equal length takes 32
seconds to cross a pole and 40 seconds to cross a 160-metre-long platform. If 8 compartments are removed, then how long would it take to cross a pole?Solution
Let the original length of the train = βdβ metres
Then, distance covered by the train in 32 seconds = βdβ metres
Distance covered by the train in 40 seconds = (d + 160) metres
So, distance covered in (40 β 32) = 8 seconds = (d + 160 β d) = 160 metres
So, speed of the train = 160 Γ· 8 = 20 m/s
So, original length of the train = 20 Γ 32 = 640 metres
After removing 8 compartments, length of the train = 640 Γ (8/16) = 320 metres
So, required time taken = 320 Γ· 20 = 16 seconds
NingolChakkouba festival is celebrated in which state?
The Reserve Bank of India imposed a penalty of βΉ1 crore on which bank for offering gifts in the form of paying first-year life insurance premiums?
In the ____ edition of Miss Universe competition India’s Harnaaz Sandhu was crowned as Miss Universe 2021.
Which of the following statements is correct?
Sulochana Chavan passed away at the age of 92 years she was famous?
Which country will be hosting the 2026 World Badminton Championship?
Plug and Muzzle are the terms associated with which sport?
Which of the following is a component of the RAMP Scheme?
Rajeev Gandhi International Airport is in which state?
If "DOG" is coded as "EPI", how will "CAT" be coded?