A is travelling at 72 km per hour on a highway while B is travelling at a speed of 25 mitres per second. What us the difference in their speeds in mitres per second ?
A. $$1\frac{1}{2}$$ m/sec
B. 2 m/sec
C. 3 m/sec
D. 5 m/sec
Answer: Option D
Solution(By Examveda Team)
A's speed := 72 km/hr
= $$\left( {72 \times \frac{5}{{18}}} \right)$$ m/sec
= 20 m/sec
B's speed = 25 m/sec
Difference :
= (25 - 20) m/sec
= 5 m/sec
Related Questions on Speed Time and Distance
A. 48 min.
B. 60 min.
C. 42 min.
D. 62 min.
E. 66 min.
A. 262.4 km
B. 260 km
C. 283.33 km
D. 275 km
E. None of these
A. 4 hours
B. 4 hours 30 min.
C. 4 hours 45 min.
D. 5 hours
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