Hari covers 100m distance in 36 seconds. Ram covers the same distance in 45 seconds. In a 100m race, Hari ahead from Ram is
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 20m
Hari finishes the race in 36 seconds. The lead is the distance Ram still has to run when Hari finishes.
\( \displaystyle \text{Ram's speed} = \frac{100}{45} = \frac{20}{9} \text{ m/s} \)
\( \displaystyle \text{distance run by Ram in 36 s} = \frac{20}{9} \times 36 = 80 \text{ m} \)
\(\text{lead} = 100 - 80 = 20 \text{ m}\)