Coded Binary Numbers Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Coded Binary Numbers. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

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In a certain code, the symbol for 0 (zero) is @ and for 1 is $. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be depicted using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

'0' is depicted as @

'1' is depicted as $

'2' is depicted as $@

'3' is depicted as $$

'4' is depicted as $@@ and so on.

Q 1 - Which of the following will represent 17?

Options :

Answer : C

Explanation

(17)₁₀ = (10001)₂ or,$@@@$

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In a certain code, the symbol for 0 is * and for 1 is Δ. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be depicted using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

'0' is depicted as *

'1'is depicted as Δ

'2' is depicted as Δ*

'3' is depicted as ΔΔ

'4' is depicted as Δ** and so on

Q 2 - Which of the following codes will represent the sum of Δ *Δ *Δ +Δ ***Δ *+Δ Δ Δ ***?

Options :

Answer : D

Explanation

Put 1,2,4,8,16 and so on below each symbol starting from the right end of the symbol arrangement, we get,

Δ	*	Δ	*	Δ
16	8	4	2	1

= 16 + 4 + 1 = 21

Reject the value below *, since * = 0

Δ	*	*	*	Δ	*
32	16	8	4	2	1

= 32 + 2 = 34

Δ	Δ	Δ	*	*	*
32	16	8	4	2	1

= 32 + 16 + 8 = 56

Hence, total sum = 21 + 34 + 56 = 111

Now,

Hence, 111 will be coded as 1101111

which equals Δ Δ*Δ Δ Δ Δ [∵ 0 is depicted as * and 1 is depicted as Δ]

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In a certain code, the symbol for 0 is • and for 1 is #. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be depicted using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

0 is written as •

1 is written as #

2 is written as at

3 is written as ##

4 is written as #•• and so on.

Q 3 - Which of the following numbers will be represented by ###•#?

Options :

Answer : D

Explanation

Put 1,2,4,8 and so on below each symbol starting from the right end of the symbol arrangement, we get,

#	#	#	•	#
16	8	4	2	1

Now since • stands for 0, therefore, reject all the values written below the •’s. Thus reject 2. Now, add the remaining values under each #. Hence, the required value of ###•# is 16 + 8 + 4 + 1 = 29.

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In a certain code, the symbol for 0 is ) and for 1 is Δ. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be depicted using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

0 is written as )

1 is written as Δ

2 is written as Δ)

3 is written as Δ Δ

4 is written as Δ) ) and so on.

Q 4 - Which will represent the value of (450x 45) ÷ 20.25 ÷ 100?

Options :

Answer : D

Explanation

(450 x 45) ÷ 20.25 ÷ 100 = 10

(10)₁₀ = (1010)₂ = Δ* Δ*

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In a certain code, the symbol for 0 is - and for 1 is (. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be depicted using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

'0' is depicted as -

'1' is depicted as (

'2' is depicted as (-

'3' is depicted as ((

'4' is depicted as (-- and so on

Q 5 - Which of the following will represent 11?

Options :

Answer : A

Explanation

So (11)₁₀ = (1011)₂ = (-((

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In a certain code, the symbol 0 is written as + and for 1 is *. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be written using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

0 is written as +

1 is written as *

2 is written as *+

3 is written as **

4 is written as *++

Q 6 - Which of the following numbers will be represented by **+**?

Options :

Answer : A

Explanation

The number is **+** = (11011)₂ = (27)₁₀

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In a certain code, the symbol for 0 is * and for 1 is Δ . There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be written using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

0 is written as *

1 is written as Δ

2 is written as Δ*

3 is written as Δ Δ

4 is written as Δ** and so on.

Q 7 - Which of the following will represent 37?

Options :

Answer : A

Explanation

The decimal to binary conversions will be (37)₁₀ = (100101)₂

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In a certain code, the symbol 0 is written as - and for 1 is $. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be written using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

0 is written as -

1 is written as $

2 is written as $-

3 is written as $$

4 is written as $--

Q 8 - Which of the following numbers will be represented by --$$?

Options :

Answer : D

Explanation

The number is --$$ = (0011)₂ = (3)₁₀

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In a certain code, the symbol for 0 is + and for 1 is *. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be written using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

0 is written as +

'1' is written as *

2 is written as *+

3 is written as **

4 is written as *++ and so on

Q 9 - Which of the following will represent 10?

Options :

Answer : A

Explanation

After dividing 10 with 2, we can get remainders as 1010 which means the answer is *+*+.

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In a certain code, the symbol for 0 is ^ and for 1 is *. There is no symbol for rest of the numbers. Numbers greater than 1 are needed to be written using the two given symbols. Left shifting of 1 doubles its value each time. Study the following example.

0 is written as ^

1 is written as *

2 is written as *^

3 is written as **

4 is written as *^^ and so on

Q 10 - Which of the following numbers will be represented by *^^*

Options :