A, B and C participated in a race. A covers the same distance in 49 steps as B covers in 50 steps and C covers in 51 steps. A takes 10 steps in same time as B takes 9 steps and C takes 8 steps. Who is the winner of the race?
A, B and C participated in a race. A covers the same distance in 49 steps as B covers in 50 steps and C covers in 51 steps. A takes 10 steps in same time as B takes 9 steps and C takes 8 steps. Who is the winner of the race? Correct Answer A
Let distance covered by A, B and C is d.
Distance covered in 1 step of A = d/49
Distance covered in 1 step of B = d/50
Distance covered in 1 step of C = d/51
Now in case 2:
Let time taken by A, B and C is t.
Time taken to cover 1 step by A = t/10
Time taken to cover 1 step by B = t/9
Time taken to cover 1 step by C = t/8
So by this we can calculate speed in 1 step.
Speed of A = d/49 / t/10 = 10d/49t
Speed of B = d/50 / t/9 = 9d/50t
Speed of C = d/51 / t/8 = 8d/51t
∴ Speed of A is maximum hence he will win the race.
মোঃ আরিফুল ইসলাম
Feb 20, 2025