A man takes 20 minutes to go to market from home at a speed of 10km/hr.How many minutes would the man take if he goes to the market from home riding his car at the rate of 20km/hr
a)15
b)16
c)10
d)20
e)17

• Tima taken in car = 20*10/20 = 10 mins ....option c)
  
  when speed is doubled , time becomes half of earlier case.
• 13 years agoHelpfull: Yes(2) No(0)
• Time taken to travel distance is inversely proportinal to speed.
  
  Then time taken in second case = 20*10/20 = 10 mins.
• 13 years agoHelpfull: Yes(2) No(0)