Statement I:Let the actual time taken by Ravi to reach the college be ' t '.If Ravi travels at a speed of 5 km/hr, time taken is t+6010​ If Ravi travels at a speed of 6 km/hr, time taken is t−604​ Distance = speed*time
5t+6050​=6t−6024​t=6074​Distance (P)=5(6074​+6010​)=5(6084​)=7 kmTherefore, statement I is incorrect.Statement II:Let the speed of Babita be 3x.The speed of Amit is 7x.
B covers distance y.In the same time, A should cover 80+y.3xy​=7x80+y​7y=240+3y4y=240y=60Total distance =80+60=140 mTherefore, statement II is correct.The answer is option D.