Answer: Option C
Explanation:
Speed=DistanceTimeDistance=750meterTime=2 min 30 sec=150secSpeed=750150=5m/sec=>5∗185km/hr=18km/hr
Answer: Option A
Explanation:
Let the time in which he travelled on foot = x hour
Time for travelling on bicycle = (9 - x) hr
Distance = Speed * Time, and Total distance = 61 km
So,
4x + 9(9-x) = 61
=> 5x = 20
=> x = 4
So distance traveled on foot = 4(4) = 16 km
Answer: Option B
Explanation:
We know Time = Distance/speed
So total time taken =
(16064+16080)=92hours Time taken for 320 Km = 320∗29=71.11km/hr
Answer: Option B
Explanation:
Time taken to cover 600 km = 6 hours [because train speed is 100 km/hr]
Number of stops =
begin{aligned}
frac{600}{75} - 1 = 7 \
text{Total time on stops =}7*3 = 21 mins
end{aligned}
Total time taken by train = 6 hours 21 mins
Answer: Option A
Explanation:
We know that,
Time=DistanceSpeedSpeed=20 km/hr=20∗518m/sec=509m/sec Time =(400∗950)=72sec=115min
Answer: Option B
Explanation:
Speed=(80∗518)m/sec=2009m/sec=2229msec
