Exams Questions and Answers

Q:

If $3^{x - y} = 27$ , $3^{x + y} = 243$ then find the x value

A) 2	B) 8
C) 4	D) 1

Answer & Explanation Answer: C) 4

Explanation:

Given that $3^{x - y} = 27$ , $3^{x + y} = 243$

$\Rightarrow 3^{x - y} = 3^{3}, 3^{x + y} = 3^{5}$

=> x-y=3, x+y=5

=> x = 4

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Filed Under: Simplification
Exam Prep: CAT
Job Role: Bank Clerk

15 11656

Q:

Ayurveda Day celebrated globally on

A) November 13	B) November 12
C) November 14	D) November 15

Answer & Explanation Answer: A) November 13

Explanation:

Ayurveda Day is annually celebrated across the globe on the day of Dhanwantri Jayanti, as a global initiative to promote and preserve the health science of Ayurveda.

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Filed Under: Important Days and Years
Exam Prep: Bank Exams

2 11651

Q:

_________ hard drives are permanently located inside the system unit and are not designed to be removed, unless they need to be repaired or replaced

A) Static	B) Internal
C) External	D) Remove

Answer & Explanation Answer: B) Internal

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams
Job Role: Bank Clerk

18 11641

Q:

Bread : Yeast :: Curd : ?

A) Fungi	B) Bacteria
C) Germs	D) Virus

Answer & Explanation Answer: B) Bacteria

Explanation:

First is produced by the action of the second.

Hence, Bread : Yeast :: Curd : Bacteria.

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

6 11610

Q:

There are seven persons P, Q, R, S, T, U and V up on a ladder(not in this order).P is further up than T but is lower than R. Q is in the middle. V is between P and Q. T is between Q and U. If U is between T and S, the person on the bottom step of the ladder will be ?

A) S	B) R
C) U	D) T

Answer & Explanation Answer: A) S

Explanation:

k221482990533.jpg image

Here as given Q is in the middle and it satisfies all other conditions given in the question.

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Filed Under: Logical Sequence of Words
Exam Prep: GATE
Job Role: Network Engineer

19 11608

Q:

At a certain rate of interest the compound interest of 3 years and simple interest of 5 years for certain sum of money is respectively Rs. 1513.2 and Rs. 2400. Find the common rate of interest per annum ?

A) 5%	B) 6%
C) 4%	D) 3%

Answer & Explanation Answer: A) 5%

Explanation:

Given compound interest for 3 years = Rs. 1513.2

and simple interest for 5 years = Rs. 2400

Now, we know that C.I = $[P {(1 + \frac{R}{100})}^{n} - 1]$

=> 1513.2 = $[P {(1 + \frac{R}{100})}^{3} - 1]$ ...........(A)

And S.I = PTR/100

=> 2400 = P5R/100 ..................(B)

By solving (A) & (B), we get

R = 5%.

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Filed Under: Compound Interest
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

18 11608

Q:

The circumferences of two circles are 264 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles ?

A) 2413 sq.m	B) 1234 sq.m
C) 4312 sq.m	D) 2143 sq.m

Answer & Explanation Answer: C) 4312 sq.m

Explanation:

Let the radii of the smaller and the larger circles be 's' m and 'l' m respectively.

$2 πs$ = 264 and $2 πl$ = 352

s = $\frac{264}{2 π}$ and l = $\frac{352}{2 π}$

Difference between the areas = $π l^{2} - π s^{2}$

= $π (\frac{176^{2}}{π^{2}} - \frac{132^{2}}{π^{2}})$

= $\frac{1762}{π} - \frac{1322}{π}$

= (176 - 132)(176 + 132) / $π$

= (44 x 308) / (22/7) = 4312 sq.m

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Filed Under: Volume and Surface Area
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

18 11604

Q:

Find the odd man out from the given alternatives ?

A) 97	B) 233
C) 437	D) 599

Answer & Explanation Answer: C) 437

Explanation:

Except 437 all others are prime numbers.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

33 11593

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