3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Look at the series :

3, 7, 24, 11, __, 19, 19,... What number should fill the blank ?

A) 15	B) 13
C) 21	D) 16

Answer & Explanation Answer: A) 15

Explanation:

Two series alternate here, with every third number following a different pattern.
In the main series, 4 is added to each number to arrive the next.
In alternate series, 5 is subtracted from each number t arrive the next number.
Here in the main series
3 + 4 = 7
7 + 4 = 11
11 + 4 = 15
15 + 4 = 19

In alternate series
24 - 5 = 19
19 - 5 = 14...

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Filed Under: Number Series
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23 64476

Q:

Arrange the words given below in a meaningful sequence.

1.Caste 2. Family 3. Newly married Couple 4.Clan 5.Species

A) 2, 3, 1, 4, 5	B) 3, 4, 5, 1, 2
C) 3, 2, 1, 4, 5	D) 4, 5, 3, 2, 1

Answer & Explanation Answer: C) 3, 2, 1, 4, 5

Explanation:

The correct order is :

Newly married Couple Family Caste Clan Species

3 2 1 4 5

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Filed Under: Logical Sequence of Words

73 64273

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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17 64210

Q:

From the given alternatives, according to dictionary, which word will come at THIRD position?

1. Doubled

2. Dragged

3. Doubling

4. Dragging

5. Draw

A) Dragged	B) Dragging
C) Doubled	D) Doubling

Answer & Explanation Answer: A) Dragged

Explanation:

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5 64056

Q:

In the following question, select the missing number from the given series.

9, 11, 14, 16, 19, 21, ?

A) 24	B) 26
C) 25	D) 27

Answer & Explanation Answer: A) 24

Explanation:

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Filed Under: Number Series
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26 64056

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:

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Filed Under: Blood Relations
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19 63974

Q:

P is the brother of Q and R. S is R's mother. T is P's father. Which of the following statements cannot be definitely true ?

A) T is Q's father	B) S is P's mother
C) P is S's son	D) Q is T's son

Answer & Explanation Answer: D) Q is T's son

Explanation:

P, Q, R are children of same parents. So. S who is R's mother and T, who is R's father will be mother and father of all three.

However, it is not mentioned whether Q is male or female So, D cannot be definitely true.

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980 63874

Q:

Consider the following information and answer the questions based on it.

Out of 60 people in a colony, 10 speak only Bengali, 5 speak only Assamese, 10 speak both Hindi and Odia, 12 speak both Marathi and Hindi, 13 speak English, Tamil and Marathi, 5 speak both Assamese and Hindi and the remaining speak both Bengali and Hindi.

How many people speak more than one language?

A) 15	B) 45
C) 50	D) 55

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