In 1 km linear race, P beats Q by 120 metres or 30 sec. What is the time taken…
2023
In 1 km linear race, P beats Q by 120 metres or 30 sec. What is the time taken by P to cover the race?
- A.
220 sec
- B.
250 sec
- C.
235 sec
- D.
240 sec
Attempted by 11 students.
Show answer & explanation
Correct answer: A
Q covers the 120 m gap in 30 s, so Q's speed is 4 m/s. When P finishes 1000 m, Q has covered 880 m at 4 m/s, which takes 880/4 = 220 s. Therefore P's time is 220 s.