Aptitude and Reasoning Questions

Q:

If two cards are taken one after another without replacing from a pack of 52 cards. What is the probability for the two cards be Ace ?

A) 51/1221 B) 42/221
C) 1/221 D) 52/1245
 
Answer & Explanation Answer: C) 1/221

Explanation:

Total Combination of getting a card from 52 cards = C152

Because there is no replacement, so number of cards after getting first card= 51

Now, Combination of getting an another card= C151


Total combination of getting 2 cards from 52 cards without replacement= (C152×C151


There are total 4 Ace in stack. Combination of getting 1 Ace is = C14

 

Because there is no replacement, So number of cards after getting first Ace = 3


Combination of getting an another Ace = C13

Total Combination of getting 2 Ace without replacement=C14×C13

Now,Probability of getting 2 cards which are Ace =C14×C13C152×C151 = 1/221.

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Filed Under: Permutations and Combinations
Exam Prep: CAT , Bank Exams , AIEEE
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Q:

Find the lowest common multiple of 24, 36 and 40?

A) 360 B) 420
C) 240 D) 120
 
Answer & Explanation Answer: A) 360

Explanation:

To find the LCM of 24, 36 and 40

24 = 2 x 2 x 2 x 3

36 = 2 x 2 x 3 x 3

40 = 2 x 2 x 2 x 5 

Now, LCM of 24, 36 and 40 = 2 x 2 x 2 x 3 x 3 x 5

= 8 x 9 x 5

= 72 x 5

= 360

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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Parallel construction means that you

A) give both sides of the argument in your essay. B) begin each paragraph of your essay in the same way.
C) use the same grammatical construction in all similar headings throughout an outline. D) repeat the first paragraph of your essay as the last paragraph.
 
Answer & Explanation Answer: C) use the same grammatical construction in all similar headings throughout an outline.

Explanation:
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Filed Under: Alphabet Test
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Q:

How is Giridhar's mother's husband's father-in-law's son's daughter related to Giridhar?

A) Sister B) Wife
C) Niece D) None of these
 
Answer & Explanation Answer: D) None of these

Explanation:

The relations may be analysed as follows :

Mother's husband ---> father,  father's father-in-law --->grandfather,  grandfather's son ---> uncle; uncle's daughter ---> cousin.

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Filed Under: Blood Relations

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Q:

Jaclyn buys $50 000 worth of debentures in a company. She earns 9.5% p.a. simple interest, paid to her quarterly (that is, every 3 months). If the agreed period of the debenture was 18 months: calculate the amount of interest Jaclyn will earn for each quarter

A) 1187.50 B) 1234
C) 1289 D) 1345
 
Answer & Explanation Answer: A) 1187.50

Explanation:

I=(p x r x t)/100

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Filed Under: Simple Interest
Exam Prep: Bank Exams
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Q:

How many such pair of letters are there in the word ‘TROUBLED’ which have as many letters between them in the word as they have between them in the English alphabet?

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: A) 2

Explanation:

Hence there are two pairs

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Q:

If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ?

A) 17.25 % B) 18.14 %
C) 18.33 % D) 17.35 %
 
Answer & Explanation Answer: C) 18.33 %

Explanation:

We know that I = PTR/100

11 = (2x30xR)/100

R = 18.333 %

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Filed Under: Simple Interest
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Q:

The following Line chart gives the ratio of the amounts of imports by a Company to the amount of exports from that Company over the period from 1995 to 2001. Answer the following questions based on fo

 

1. In how many of the given years were the exports more than imports ?

A. 1                          B. 2                          C. 3                          D.4

 

2. The imports were minimum proportionate to the exports of the Company in the year :

A. 1997                    B. 1995                    C. 1996                    D. 2000

 

3. If the imports of a company in 1996 was Rs. 272 crores, the exports from the company in 1996 was:

A. Rs 120 Cr            B. Rs 220 Cr            C. Rs 320 Cr            D. Rs 420 Cr

 

4. What was the percentage increase in imports from 1997 to 1998 ?

A. 70                        B. 72                        C. 74                        D. Data Inadequate

 

5. If the imports in 1998 was Rs. 250 crores and the total exports in years 1998 and 1999 together was Rs 500 crores, then the imports in 1999 was :

A. Rs.320 Cr            B. Rs.420 Cr            C. Rs.520 Cr            D. Rs.620 Cr

Answer

1. ANSWER : D 


Explanation -  Clearly the exports are more than the imports implies that the ratio of value of imports to exports in less than 1. So years are 1995, 1996, 1997 and 2000. So these are four years 


 


2. ANSWER : A 


Explanation - Clearly from the line graph we can judge it is minimum in year 1997.


 


3. ANSWER : C 


Explanation -  We are given with the ratio of imports and exports in the line graph.
Let the exports from the company in 1996 was x then, 


272/x = 0.85 


=> x = 272/0.85 


=> x = 320

Note: Please not that we are given the ratio of imports to exports, so export will will in denominator .


 


4. ANSWER : D 


Explanation - For calculating the percentage we will need value of exports, imports etc. We are only given with the ratio. So data in Inadequate.


Note: Please note in charts questions, most probably it includes 1 or more than 1 questions which are percentage based. So please clear percentage questions before preparing it. Because this is very scoring section.


 


5. ANSWER : B 


Explanation - The Ratio of imports to exports for the years 1998 and 1999 are 1.25 and 1.40 respectively. Let the exports in the year 1998 = Rs. x crores
Then,the exports in the year 1999 = (500-x) crores

=> 1.25 = 250/x [because 1.25 is 1998 ratio]

=> x = 250/1.25 = 200 crore

Thus the exports in the year 1999 were 500 - 200 = 300 crore

Let the imports in the year 1999 = Rs y crore 


Then 1.40 = y/300 


=> y = 1.40 x 300 = 420 crore

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Subject: Line Charts

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