# Computer Aptitude MCQ

**Directions (Q. 1-10) : Study the following information carefully and answer the questions given below.**

**In a certain code, the symbol for ‘0’ is ‘@’, ‘1’ is ‘#’ and ‘2’ is ‘$’. There are no other symbols for numbers greater than ‘2’. The number/s greater than ‘2’ is/are to be written only by using the above mentioned three symbols. For e.g.**

‘0’ is coded as ‘@’

‘1’ is coded as ‘#’

‘2’ is coded as ‘$’

‘3’ is coded as ‘#@’

‘4’ is coded as ‘##’

‘5’ is coded as ‘#$’ and so on.

**1. What is the code for ’50’?**

1) #$#@

2) #@##

3) #@$$

4) #$#$

5) ##$#

**2. What will be the product of ‘#@$’ and ‘#$#’ in the given coded language?**

1) $#@#@

2) $@##@

3) $@##$

4) ##$@$

5) None of these

**3. Which of the following number depicts ‘#@#$@’ code?**

1) 70

2) 96

3) 50

4) 100

5) 120

**4. What is the sum of ‘####@’ and ‘#@#@@’?**

1) $#$#@

2) $###$#

3) $#$#$

4) $@#$#@

5) ##$@$#

**5. What is the difference between ‘#@$$’ and ‘#$@’?**

1) #$#

2) $#$

3) $@$

4) $##

5) $@@

**6. Solve the equation**

**‘$$@@’ + ‘$#@#’ – ‘#@#$’**

1) #@#$#

2) #@$##

3) #@$#@

4) #@$##

5) #@$#$

**7. Which of the following is the code for 500?**

1) $@#@##

2) $@@##$

3) @#@@$$

4) $$$#@@$

5) #@#@$@

**8. ‘#@@@#$#’ is written as**

1) 650

2) 975

3) 865

4) 745

5) None of these

**9. If ‘$$#@’ is divided by ‘#$’, What will be the resultant code?**

1) ##@

2) #$@

3) $#@

4) $##

5) $$@

**10. What is the sum of ‘#@@##’ and ‘#@##@’?**

1) $@#$#

2) #@#$#

3) $@#@#

4) $#@#$

5) $#$#$#

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**Answers:**

- 4
- 3
- 2
- 1
- 3
- 5
- 2
- 4
- 2
- 1