Syntel
Company
Numerical Ability
Time Distance and Speed
Travelling at 3/4th the speed a man is 20 minutes later then speed is?
Read Solution (Total 4)
-
- Let L be the distance, V be his usual speed.
We have L/(3/4 V) = L/V + 20.
So, 4/3 * L/V = L/V + 20,
Or 1/3 * L/V = 20,
we get L/V = 60 (min)
Since V is his usual speed, so T = L/V his usual time for
him walking from to the office.
Another way , let T (min) be the usual time, then he spent 4 T/3
when walking in 3/4 of usual speed.
Since 4T/3 = T +20, we obtain T = 60 min.
SACHIN - 13 years agoHelpfull: Yes(16) No(3)
- Since V is his usual speed, so T = L/V his usual time for
him walking from to the office.
Another way , let T (min) be the usual time, then he spent 4 T/3
when walking in 3/4 of usual speed.
Since 4T/3 = T +20, we obtain T = 60 min. - 13 years agoHelpfull: Yes(4) No(1)
- speed will be same
- 13 years agoHelpfull: Yes(1) No(12)
- Speed = 3/4 of normal speed;
therefore time becomes 4/3.
extra time=1/3 of normal time= 20 minutes
therefore normal time = 60 minutes. - 11 years agoHelpfull: Yes(1) No(0)
Syntel Other Question