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.