Question
The downstream speed of a boat is 16 kmph more than its
upstream speed and the sum of the downstream and upstream speeds is 44 kmph. The boat covers (x + 10) km in the direction of stream in 4 hours. Find the value of x.Solution
ATQ, Stream speed = (downstream – upstream)/2 = 16/2 = 8 km/hr Boat speed in still water = (downstream + upstream)/2 = 44/2 = 22 km/hr Downstream speed = 22 + 8 = 30 km/hr Distance covered downstream in 4 hours = (x + 10) (x + 10)/4 = 30 x + 10 = 120 x = 120 – 10 = 110 km
In the following questions below are given some statements followed by some conclusions based on those statements. Taking the given statements to be tr...
Some tyres may be flowers. Some jungles are not rains. Some flowers are petals.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be tru...
Statements:
Only a few Beautiful is Intelligent.
Only a few Smart is Beautiful.
No Smart is Honest.
Conclusion:
I. No...
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:
Only a few Radio are Gramophone
No Gramophone are TV
Only a few TV is Recorder
Conclusions:
In the quest...
Statements:
All Flowers are Roses
No Root is Stem
All Root are Roses
Conclusions:
I. All Stem are Flower
II. No Stem is Flower
Two statements are given followed by three conclusions numbered I, II, and III assuming the statements to be true, even if they seem to be at variance ...
