Aptitude and Reasoning Questions

Q:

If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:

A) 55/601 B) 601/55
C) 11/120 D) 120/11
 
Answer & Explanation Answer: C) 11/120

Explanation:

Let the numbers be a and b.

 

Then, a + b = 55 and ab = 5 x 120 = 600.

 

The required sum =1a+1b = a+bab55600=11120

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Filed Under: HCF and LCM

134 78371
Q:

92613 x 62742241 = ? + 89

Find the value of '?'

A) 166251 B) 166259
C) 166252 D) 166253
 
Answer & Explanation Answer: C) 166252

Explanation:

Given 92613 x 62742241 = ? + 89

 

Using unit digit method,

 

On LHS,

 

1 x 1 x 1 = 1

 

sqrt of last digit 1 => it must end with either 9 or 1

 

so now

 

1 x 1 = 1

 

1 x 9 = 9

 

On RHS,

 

? + 89

 

=> ? = ...1 - 89 = last digit is 11- 9 = 2

 

or

 

=> ? = ...9 - 89 = last digit is 9 - 9 = 0

 

Here in the options last digit 2 is option C.

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Filed Under: Simplification
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

22 78206
Q:

Find the odd man out.

331, 482, 551, 263, 383, 362, 284

A) 263 B) 383
C) 331 D) 551
 
Answer & Explanation Answer: B) 383

Explanation:

In each number except 383, the product of first and third digits is the middle one.

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Filed Under: Odd Man Out

64 78064
Q:

If the diagonal of a rectangle is 17cm long and its perimeter is 46 cm. Find the area of the rectangle.

A) 110 B) 120
C) 130 D) 140
 
Answer & Explanation Answer: B) 120

Explanation:

let length = x and breadth = y then  

2(x+y) = 46         =>   x+y = 23  

x²+y² = 17² = 289  

now (x+y)² = 23² 

=> x²+y²+2xy= 529 

=> 289+ 2xy = 529

=> xy = 120  

area = xy = 120 sq.cm

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

284 78053
Q:

A clock is set right at 5 a.m. The clock loses 16 minutes in 24 hours.What will be the true time when the clock indicates 10 p.m. on 4th day?

A) 11pm B) 12pm
C) 1pm D) 2pm
 
Answer & Explanation Answer: A) 11pm

Explanation:

Time from 5 am. on a day to 10 pm. on 4th day = 89 hours.

Now 23 hrs 44 min. of this clock = 24 hours of correct clock.

356/15 hrs of this clock = 24 hours of correct clock

89 hrs of this clock = (24 x 31556 x 89) hrs of correct clock.

= 90 hrs of correct clock.

So, the correct time is 11 p.m.

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Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank PO

240 77933
Q:

By selling 45 lemons for Rs 40, a man loses 20%. How many should he sell for Rs 24 to gain 20% in the transaction ?

A) 16 B) 18
C) 20 D) 22
 
Answer & Explanation Answer: B) 18

Explanation:

Let S.P. of 45 lemons be Rs. x.

 

Then, 80 : 40 = 120 : x or   x = 40×12080= 60

 

For Rs.60, lemons sold = 45

 

For Rs.24, lemons sold  =4560×24= 18.

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Filed Under: Profit and Loss

778 77790
Q:

Vaunt : Flaunt :: Disparate : ?

A) Similar B) Homogenous
C) Contrast D) Alike
 
Answer & Explanation Answer: C) Contrast

Explanation:

Vaunt - Vaunt means to boast or to praise about something excessively.

Flaunt - Flaunt also means to boast about something or to praise something.

 

Flaunt is the synonym of the word Vaunt.

 

Disparate - Disparate means essentially different in its kind or unlike or not able to be compared.

Then the required word is the synonym of Disparate.

 

Here in the given options, Contrast is the only word which is similar in meaning of Disparate.

 

Hence, Vaunt : Flaunt :: Disparate : Contrast.

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Filed Under: Analogy
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

297 77603
Q:

Choose a similar word ?

Kolkata, Mumbai, Mangalore

A) Hyderabad B) Delhi
C) Cochin D) Jaipur
 
Answer & Explanation Answer: C) Cochin

Explanation:

All cities belong to port cities of India.

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Filed Under: Analogy
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

34 77584