GATE Questions and Answers with Explanation

Q:

What is the number that should come in the place of question mark ?

1050 420 168 67.2 ?

A) 19.11	B) 14.25
C) 10.752	D) 26.88

Answer & Explanation Answer: D) 26.88

Explanation:

Given series follows the rule of

1050/2.5 = 420
420/2.5 = 168
168/2.5 = 67.2
so 67.2/2.5 = 26.88

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Filed Under: Number Series
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17 64838

Q:

Find the next number in the number series?

1, 4, 12, 32, ?

A) 80	B) 100
C) 192	D) 169

Answer & Explanation Answer: A) 80

Explanation:

Next number of the sequence 1, 4, 12, 32,...

1 = 2 x $2^{0}$

4 = 2 x $2^{1}$

12 = 3 x $2^{2}$

32 = 4 x $2^{3}$

80 = 5 x $2^{4}$ .

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Filed Under: Odd Man Out
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5 64837

Q:

Find the Odd One Out?

3 24 186 1008 5040 20160

A) 24	B) 20160
C) 186	D) 5040

Answer & Explanation Answer: C) 186

Explanation:

The given number series is 3 24 186 1008 5040 20160

Here the given series follows a pattern that,

3

3 x 8 = 24

24 x 7 = 168 not 186

168 x 6 = 1008

1008 x 5 = 5040

5040 x 4 = 20160

Hence the Odd One in the number series is 186.

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Filed Under: Odd Man Out
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3 64777

Q:

Mark the odd man out in the given number series

24.3, 23.1, 20.7, 17.1, 12.4

A) 12.4	B) 17.1
C) 20.7	D) 23.1

Answer & Explanation Answer: A) 12.4

Explanation:

The given series 24.3, 23.1, 20.7, 17.1, 12.4 follows a pattern that

24.3

24.3 - 1.2 = 23.1

23.1 - 2.4 = 20.7

20.7 - 3.6 = 17.1

17.1 - 4.8 = 12.3 not 12.4

Hence, the odd man or odd number in the given series is 12.4

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Filed Under: Odd Man Out
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4 64683

Q:

Conditions:

I is brother of J

K is father of I

L is brother of M

M is daughter of J , then

Who is I to L?

A) Grand father	B) Uncle
C) Son	D) Brother

Answer & Explanation Answer: B) Uncle

Explanation:

k331482992185.jpg image

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Filed Under: Blood Relations
Exam Prep: GATE
Job Role: Network Engineer

19 64286

Q:

What value should come in place of the question mark (?) in the following question?

$\frac{5^{2} x 14 + 1450}{18} = 1998 \div ?$

A) 18.25	B) 19.98
C) 34.58	D) 65.25

Answer & Explanation Answer: B) 19.98

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: GATE , Bank Exams

0 64268

Q:

I. $a^{2} - 7 a + 12 = 0$ ,

II. $b^{2} - 3 b + 2 = 0$

Solve both the equations to find the values of a and b ?

A) if a > b	B) if a < b
C) if the relationship between a and b cannot be established.	D) if a ≤ b

Answer & Explanation Answer: A) if a > b

Explanation:

I. (a - 3)(a - 4) = 0

=> a = 3, 4

II. (b - 2)(b - 1) = 0

=> b = 1, 2

=> a > b

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Filed Under: Statement and Conclusions
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1 64099

Q:

What is the value of KL ?

Statement A: $K^{2}$ = 4.
Statement B: L = 0.

A) Only A is sufficient	B) Only B is sufficient
C) Both (A) and (B) are sufficient	D) None of the above

Answer & Explanation Answer: B) Only B is sufficient

Explanation:

From statement B,

As the value of L = 0, the value of KL = 0.

Hence only statement B is sufficient.

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Filed Under: Statement and Conclusions
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