HCL Time Speed & Distance Quiz -1

Distance = 25 x 1.5 = 37.5 km = 37500 meter

630 \times \frac{5}{18} = 175 m/sec

Since Speed is directly proportional to Distance 

So,  the ratio will be the same. 

So it will be 9:13

Time = 11 - 6 = 5 hours

Distance = 5 x 50 = 250 km

speed of the boat in still water = \frac{1}{2}\times (34+28) = 31km/ hr

Speed of Avinash = frac{400}{8} = 50 m/sec

Speed of Abhishek = 3 x 50 = 150 m/sec

Since they are in opposite directions

Relative Speed = 75+140 = 215 km/hr

Raghav speed = \frac{1200}{30} = 40 m/sec

Bipin speed = \frac{300}{15} = 20 m/sec

Raghav Speed is more

Relative speed = 40 + 60 = 100 m/sec

Required Time = \frac{5000}{100} = 50 sec

2 minutes = 120 sec

4 minutes = 240 sec

Average speed = \frac{\text{Total distance Travelled}}{\text{Total Time Taken}}= \frac{300 + 300}{360} = 1.66m/sec