A car can cover 350 km in 4 hours. If the speed is decreased by 12 1/2 kmph, how much time does the car take to cover a distance of 450 km? a)4 hrs b)5 hrs c)2 hrs d)6 hrs

• speed=350/4 = 87 1/2 kmph
  speed is reduced by 12 1/2 new speed 87 1/2 + 12 1/2 =75 kmph
  time = 450/75 = 6 hrs
• 9 years agoHelpfull: Yes(0) No(0)
• 6
  first calculate speed by given distance and time then reduce 12.5 from the obtained and calculate time
  
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• Speed1 = 350/4 = 87.5 kmph
  Speed2(reduced) = 87.5-12.5=75kmph
  d=450
  therefore , time taken = 450/75 = 6hours
• 9 years agoHelpfull: Yes(0) No(0)
• The ans is 2hrs
• 5 years agoHelpfull: Yes(0) No(0)