Call Support +91-85588-96644
TCYonline

Login

Sign Up

Please enter a Username or Email ID
Please enter a password
Keep me logged in
Please enter your name
Please enter your mobile number
You can't leave Captcha Code empty
By submitting this form, you agree to the Terms & Privacy Policy.
OR

Sign Up via Facebook

Sign Up via Google

Sign Up via Twitter

Download Software
Tests given

Download TCY App

App Image

The duration of a railway journey varies directly as the distance and inversely as the velocity. The velocity varies directly as the square root of the quantity of coal used per kilometre and inversely as the number of carriages in the train. For a journey of 50 km in half an hour with 18 carriages, 100 kg of coal is required. How much coal will be consumed in a journey of 42 km in 28 minutes with 16 carriages?

 
64 kg
72 kg
100 kg
None of these

Reply


Please type your answer before submitting.
Submit

Yes even I fee it should be. According to that, I got the answer as 53.76 for the entire journey.

64

Question states sq rt of coal used per km... so should'nt Q be 2 for first case