In a 700m race. Amit reaches the finish point in 20 seconds and Rahul reaches in 25 seconds. Amit beat Rahul by a distance of:

140 m

The correct answer is Option (3) → 140 m

$\text{Speed of Amit} : \frac{700}{20} = 35 \text{ m/s}.$

$\text{Speed of Rahul} : \frac{700}{25} = 28 \text{ m/s}.$

$\text{Distance covered by Rahul in 20 s} = 28 \times 20 = 560 \text{ m}.$

$\text{Distance by which Amit beats Rahul} = 700 - 560 = 140 \text{ m}.$

$\text{Amit beat Rahul by } 140 \text{ m}.$