A man covers one-third of his journey at 30 km per hr. and the remaining two-third at 45 km per hr. If the total journey is of 150 kms, what is his average speed for the whole journey?

A man covers one-third of his journey at 30 km per hr. and the remaini

1.	A man covers one-third of his journey at 30 km per hr. and the remaining two-third at 45 km per hr. If the total journey is of 150 kms, what is his average speed for the whole journey?
A.	38 kmph
B.	<table><tr><td rowspan="2">38</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>4</center></td><td rowspan="2"> kmph</td></tr><tr><td style="text-align: center;">7</td></tr></table>
C.	64 kmph
D.	<table><tr><td rowspan="2">39</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>4</center></td><td rowspan="2"> kmph</td></tr><tr><td style="text-align: center;">7</td></tr></table>
Answer» C. 64 kmph

Discussion

No Comment Found

Related MCQs

Shantanu drives a motorcycle and covers a distance of 715 km at a constant speed.If the speed of the motorcycle had been 10 km/h more, he would have taken 2 h less to cover the same distance. What is the original speed of the motorcycle?
The distance between two station 'X' and 'Y' is 450 km. A train L starts at 6:00 pm from X and moves towards Y at an average speed of 60 km/h. Another train M starts from Y at 5:20 pm and moves towards X at an average speed of 80 km/h How far from X will the two trains meet and at what time ?
A soldier fired two bullets at an interval of 335 seconds moving at a uniform speed v1. A terrorist who was running ahead of the soldier in the same direction, hears the two shots at an interval of 330 seconds? If the speed of sound is 1188 km/h, then who is the faster and by how much?
A train runs for 3 h at the speed of 40 km/h and then for 41/2 h at the speed of 60 km/h. Thus, it covers 3/5th part of the whole distance. It wants to cover the remaining distance in 4 h, find the average speed of the train for remaining distance ?
A student walks from his house at 21/2 km/h and reaches his school late by 6 min. Next day, he increase his speed by 1 km/h and reaches 6 min before school time. How far is the school form his house?
A man covers a certain distance on scooter. Had he moved 3 km/h faster, he would have taken 40 min less. If he had moved 2 km/ slower, he would have taken 40 min more. The distance (in km) is ?
A man started 20 min late and travelling at a speed of 11/2 times of his usual speed reaches his office in time. The time taken by the man to reach his office at his usual speed is ?
A person can row 71/2 km/h in still water. It takes him twice as long to row up a distance as to row down the same distance. Find the speed of the stream ?
A train leaves manipur at 6:00 am and reaches Dispur at 10:00 am. Another train leaves Dispur at 8:00 am and reaches Manipur at 11:00 am. At what time do the two trains cross each other ?
A bullock cart has to cover a distance of 120 km. in 15 hours. If it covers half of thejourney in3th time, the speed to cover5 the remaining distance in the time left has to be

A man covers one-third of his journey at 30 km per hr. and the remaining two-third at 45 km per hr. If the total journey is of 150 kms, what is his average speed for the whole journey?

Discussion

No Comment Found

Related MCQs

Reply to Comment