Question
Out of 240 kilometres, a person covers some distance by
foot and the rest by bicycle. If walking speed is 6 km/h and bicycle speed is 30 km/h, and 25% of the trip is done on foot, calculate the average speed of the total journey.Solution
ATQ,
Time taken walking = (0.25 × 240) / 6 = 60 / 6 = 10 hours
Time taken cycling = (0.75 × 240) / 30 = 180 / 30 = 6 hours
Average speed = 240 / (10 + 6) = 240 / 16 = 15 km/h
Conclusions:
I. Few Organisations are Delegations.
II. Some Selections are Companies.
Statements:
Some years are months.
Some months are days.
Some days are weeks.
Conclusions:
I. No year is a da...
Statements:
All rollers are coasters.
Some swings are rollers.
All bridges are swings.
Conclusions:
I. All coaste...
Statements:
All aeroplanes are trains.
Some trains are chairs.
Conclusions:
I. Some aeroplanes are chairs.
II. So...
In the question below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be true ev...
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if t...
Statements:
All clubs are pub.
No pub is a song.
All songs are music.
Conclusions:
I. All songs being...
Statements:
No mouse is a keyboard.
Some keyboards are printers.
All printers are scanners.
Conclusions: ...
Some tyres may be flowers. Some jungles are not rains. Some flowers are petals.
Statements:
Only a few Proportions is Partitions.
Only a few Columns is Proportions.
No Column is Volume.
Conclusions:
<...
