Email Changed Successfully
Incorrect Password
Your Query Submit Successfully
Please Change Your Password Click Here
Password Changed Successfully
Profile Changed Successfully
Form Submitted Successfully
Username or Password is incorrect
Reset Password Mail Send Successfully.
Email you have entered doesn't exist.
Password Changed. Now Login.
Password Not Reset Please Try Again.
Link Expired Please Try Again
Test completed and result have been mailed to your email Id
You are successfully registerd please check your mail for login credentials.

Back To Apti QoD

July 31 2017
Question P can give Q a start of 20 seconds in a kilometre race. P can give R a start of 200 meters in the same race. And Q can give R a start of 20 seconds in that same race. How long does P take to run the kilometre?
Answer

P can give Q a start of 20 sec in a kilometer race. So, if Q takes 'x' seconds to run a kilometer, then P will take x - 20 seconds to runthe kilometer.

Q can give R a start of 20 seconds in a kilometer race. So, if R takes 'y' seconds to run in a kilometer, then Q takes y - 20 seconds to run the kilometer.

we know Q takes x seconds to run a kilometer,

therefore, x = y - 20

therefore, P will take x - 20 = y - 20 - 20 = y - 40 seconds to run a kilometer.

i.e. P can give R a start of 40 seconds to run a kilometer race, as R takes y seconds to run a kilometer and P takes only y - 40 seconds to run the kilometer.

We also know thet P can give R a start 200 meters in a km race. This is essentially means that R runs 200 meters in 40 seconds.

Therefore, R will take 200 seconds to run a km.

if R takes 200 seconds to run a km, then P will take 200 - 40 = 160 seconds to run a km.

 

 

POST AND SHARE YOUR OPINION

News Updates

08 Nov

Current News Shots October 29 - 31, 2013:

NGO the Harmony Foundation honored former Miss Universe Sushmita Sen with the Mother Teresa Memorial International Award...

Read more
31 Oct

Current News Shots October 22 - 30, 2013:

New York City Mayor Michael R. Bloomberg has been selected for the inaugural Genesis Prize – an award popularly dubbed...

Read more
View All News

Copyright © 2014 bankersalgo.com

All rights reserved