A

Admin • 832.27K Points
Coach

Q. By walking at 3/4 of his usual speed, a man reaches his office 20 minute later than usual. this usual time is ?

  • (A) 30 minute
  • (B) 60 minute
  • (C) 75 minute
  • (D) 1 hour 30 minute
  • Correct Answer - Option(B)
  • Views: 16
  • Filed under category Math
  • Hashtags:

Explanation by: Admin

At a speed of 3/4 of the usual speed, the time taken is 4/3 of the usual time
= (4/3 of usual time ) – (usual time ) = 20min.
⇒ 4x/3 -x = 20
⇒ x/3 =20
⇒ x=60 min

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.