HCL Papers: Sample Questions 15  17 of 57
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Question number: 15
» Aptitude
Short Answer Question▾
Write in Short
If a = 2, b = 3, c = 6 then find the value of
Explanation
 Here, a = 2, b = 3, c = 6
 Let first term =
 Substituting the values of a, b and c
 Second term =
 Substituting the values of a, b and c
 Subtracting both the terms,
=
 Taking LCM of 5 and 6, i. e. 30
 Value of is .
Question number: 16
» Aptitude
MCQ▾
Question
A trader bought 10kg of apples for Rs. 405 out of which 1kg of apples was found to be rotten. If he wishes to make a profit of 10%, at what rate should he sell the remaining apples per kg?
Choices
Choice (4)  Response  

a.  Rs. 45 

b.  Rs. 51 

c.  Rs. 50 

d.  Rs. 49.50 

Answer
a.Explanation
 Trader bought 10 kg of apples for Rs. 405.
 So, cost of one kg of apple is = 40.5
 Trader wants to make 10 % profit then he should sell the remaining apples at rate SP,
 SP =
 SP =
 SP = 44.55
 So, to make 10 % profit, trader should sell one kg of apple at Rs. 44.
Question number: 17
» Aptitude
MCQ▾
Question
HCL prototyping machine can make 10 copies every 4 seconds. At this rate, how many copies can the machine make in 6 minutes?
Choices
Choice (4)  Response  

a.  600 

b.  900 

c.  360 

d.  240 

Answer
b.Explanation
 1 minute = 60 seconds
 6 minutes = seconds
= 360 seconds
 In 4 seconds HCL prototype machine can make 10 copies
 Then in 360 seconds HCL prototype machine makes x copies
 HCL prototype can make 900 copies in 6 minutes.