Shortcut of Time, Speed and Distance-1

You can signup with our website to

Get access to 200+ videos on Current Affairs, Financial Affairs, English Vocabulary for Free.

Shortcut 40:

    S=\frac DT

S = Speed
D = Distance
T = Time taken
Question:
A man travels 200 km in 4 hours. What is the speed in which he travelled?
Answer:
S = 200/4 = 50 kmph
Question:
A cat runs at a speed of 3 meter per second. How long will it take to cross 3 km?
Answer:
T = D/S = 3 x 1000 / 3 = 1000 seconds

Shortcut 41:

Relative speed in same direction

S_1\sim S_2

Question:
Two cars start from same point and travels in same direction at speeds 40kmph and 50kmph. What is the relative speed between them?
Answer:
Relative speed = 50~ 40 = 10 kmph.

Shortcut 42:

Relative speed in opposite direction

       S_1+S_2     

Question:
Two cars start from same point and travels in opposite directions at speeds 40kmph and 50kmph. What is the relative speed between them?
Answer:
Relative speed = 50 + 40 = 90 kmph.

Shortcut 43:

Time taken to catch a thief

   T=D/(S_1\sim S_2)

Question:
A thief standing 50 away from a police starts running away from him at a speed of 2 m/s. The police suddenly starts chasing him at a speed of 3m/s. How long will the police take to catch the thief?
Answer:
D = 50m
S1 = 3
S2 = 2
Time taken, T = 50/(3-2)
= 50 seconds

Shortcut 44:
Time taken to meet from opposite direction

     T=D/(S_1+S_2)

Question:
Two persons starts from their home 3km apart and walk towards each other at a speed of 2mps and 3mps. How long (in minutes) will they take to meet each other?
Answer:
D = 3000m
S1 = 2mps
S2 = 3mps
T = 3000/(2+3)
= 600 seconds
Time taken in minutes = 600/60 = 10 minutes.

Profile photo of siva
Show full profile

Customer

X
- Enter Your Location -
- or -
Exambin | IBPS SSC UPSC Preparations
Exambin | IBPS SSC UPSC Preparations
Register New Account
Reset Password
Compare items
  • Total (0)
Compare
0
ARE YOU READY? GET IT NOW!
Increase more than 500% of Email Subscribers!
Your Information will never be shared with any third party.
ARE YOU READY? GET IT NOW!
Get Weekly Current Affairs Magazine to your inbox.
Your Information will never be shared with any third party.
CURRENT AFFAIRS THAT MATTERS TO YOU
Get Weekly Current Affairs Magazine to your inbox.
We never share your details.
CURRENT AFFAIRS THAT MATTERS TO YOU
Get Weekly Current Affairs Magazine to your inbox.
We never share your details.