HCL Papers: Sample Questions 30  31 of 57
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Question number: 30
» Aptitude
MCQ▾
Question
In a certain code language ‘pik na ha’ means ‘who is there’, ‘na ta ka’ means ‘what is that’ and ‘ha ja pa’ means ‘here and there’. Which of the following means ‘here’ in that code language?
Choices
Choice (4)  Response  

a.  ja 

b.  pa or ja 

c.  ha 

d.  pa 

Answer
b.Explanation
 In a code language,
 pik na ha = who is there
 na ta ka = what is that
 ha ja pa = here and there
 Comparing the above statements, we can conclude ‘na’ and ‘ha’ are the code for ‘is’ and ‘there’ respectively.
 We cannot decide any one word code for ‘here’.
 As ‘ha ja pa’ stands for ‘here and there’, either ‘ja’ or ‘pa’ can be the code for ‘here’.
Question number: 31
» Aptitude
MCQ▾
Question
What does the hex number E78 correspond to in radix 7?
Choices
Choice (4)  Response  

a.  14153 

b.  12455 

c.  13541 

d.  14256 

Answer
c.Explanation
 The given number is E78 base 16.
 We want the same number in radix (base) 7
 First convert base 16 into base 10 (decimal)
E78 = + +
=
=
= 3704
 Now, convert base 10 to base 7.
 Dividing 3704 by 7, quotient is 529 and remainder is 1
 Dividing 529 by 7, quotient is 75 and remainder is 4
 Dividing 75 by 7, quotient is 10 and remainder is 5
 Dividing 10 by 7, quotient is 1 and remainder is 3
 Dividing 1 by 7, quotient is 0 and remainder is 1.
 Reversing the order we can find the base 7 equivalent number of hex number.
 The base 7 number will be 13541.