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1st statement= total distance =D1+D2 = (3/4)x +(x/4)= x unit Time taken to cover D1 D2 4 1 2nd statement time taken to cover 25%of the distance is 30 minutes. Then, time taken to cover (100%) total distance is = 30 × 4 =120 min= 2 hrs. Distance = time × speed Speed = y kmph D = 2 × y D = 2y 3rd statement time taken to cover 75% of the distance is 1 hour 36 minutes (96 minutes) time taken to cover 25% of the distance is 32 minutes. time taken to cover 100% of the distance (total distance) is 128 minutes (2 hr. 8 min) Distance = time × speed Speed = (y-8) kmph D = (32/15) × (y-8) 4th statement Travelling at 3y/4 kmph, time taken to cover entire distance is 2hr 40 minutes (160 minutes). Distance = time × speed Speed = 3y/4 kmph D = (3y/4) × (8/3) D= 2y From statement 2nd and 3rd D = 2y D = (32/15) × (y-8) 2y = (32/15) × (y-8) 15y = 16y -128 Y =128 km. From statement 3rd and 4th D = 2y D = (32/15) × (y-8) 2y = (32/15) × (y-8) 15y = 16y -128 Y =128 km.
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