Math/Applied mathIn a 1000 m race, A reaches the final point in 56 seconds and B reaches in 70 seconds. By how much distance does A beat B?

In a 1000 m race, A reaches the final point in 56 seconds and B reaches in 70 seconds. By how much distance does A beat B?

B's speed $= \frac{1000}{70} m / \sec = \frac{100}{7} m / \sec$

Distance covered by B in 56 sec

$= \frac{100}{7} \times 56 m = 800 m$ .

So, A beats B by (1000 - 800) m i.e. 200 m.

$∴$ Option (d) is the correct answer.