Rohit drives from his home at a speed of 30 km/hr and reaches his bank 20 minutes late. Then the next day he increases his speed by 15 km/hr but still he is late by 8 minutes. How far is his bank from his home?
        a. 18 km
        b. 35 km
        c. 20 km
        d. 27 km

Dear Student,

Let distance be DWhen speed is 30 km/hr he is late by 20 minutesWhen speed is 45km/hr he is late by 8 minutesDifference between two times = 20-8 = 12 minutes = 1260hoursTime= DistanceSpeedD30-D45 = 1260D2-D3=1243D-2D6=124D= 12×64 = 18 KmHence, option A is correct

Regards

  • 2
Roy,the answer is option D)27 km
 
  • -1
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