3i Infotech Papers: Sample Questions 31  33 of 1245
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Question number: 31
» Aptitude
Question
If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream?
Choices
Choice (4)  Response  

a.  13 km/hr 

b.  26 km/hr 

c.  34 km/hr 

d.  Question does not provide sufficient data or is vague 

Answer
a.Explanation
Boat is moving in upstream with velocity of 14 kmph and downstream with a velocity of 40 kmph.
Upstream speed, b = 14 kmph
Downstream speed, a = 40 kmph
We are asked to find the speed of stream.
Speed of stream will be,
= 13 kmph
So, speed of stream is 13 kmph.
Question number: 32
» Aptitude
Question
A goat is tied to one corner of a square plot of side 12m by a rope 7m long. Find the area it can graze?
Choices
Choice (4)  Response  

a.  155 sq. m 

b.  144 sq. m 

c.  38.5 sq. m 

d.  19.25 sq. m 

Answer
c.Explanation
A goat is tied to one corner of a square plot of side 12 m by a rope of 7 m long.
We are asked to find the area that goat can graze.
As goat is tied at one corner of the square, it can cover only (1/4) (pi x r2) area.
Here, r = 7m
So, area that can be grazed by goat
= 38.5 sq. m
Question number: 33
» Aptitude
Question
If , then =
Choices
Choice (4)  Response  

a.  2 

b. 


c. 


d.  1 

Answer
d.Explanation
The given equation is
We are asked to find the value of , which will be = = 1