four points A,B,C lie on a straight line . Distance of Ato B is 15 cm and distance of B to C is 30 cm and distance of C to D is 25 cm . A person travels from A to B in 10 seconds then B to C in 15 and C to D in 10 seconds . What is the average velocity of the person
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four points A,B,C lie on a straight line . Distance of Ato B is 15 cm and distance of B to C is 30
Verified answer
Explanation:
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