Exams Questions and Answers

Q:

If $a_{n} = \frac{1}{n + 1} + 1$ then find the value of $a_{1} + a_{3} + a_{5}$ .

A) 17/12	B) 27/12
C) 37/12	D) 47/12

Answer & Explanation Answer: D) 47/12

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

0 16604

Q:

From the given words, select the word which cannot be formed using the letters of the given word.

PREACHER

A) RECAP	B) PARCH
C) PEACH	D) CARES

Answer & Explanation Answer: D) CARES

Explanation:

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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

1 16597

Q:

A man rows his boat 60 km downstream and 30 km upstream taking 3 hrs each time. Find the speed of the stream ?

A) 5 kmph	B) 10 kmph
C) 15 kmph	D) 45 kmph

Answer & Explanation Answer: A) 5 kmph

Explanation:

Speed of the boat downstream s=a/t= 60/3 = 20 kmph

Speed of the boat upstream s= d/t = 30/3= 10 kmph

Therefore, The speed of the stream = $\frac{s p e e d o f d o w n s t r e a m - s p e e d o f u p s t r e a m}{2}$ =5 kmph

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Filed Under: Boats and Streams
Exam Prep: GATE
Job Role: Bank Clerk

34 16594

Q:

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

39, 40, 42, 43, 45, ?

A) 47	B) 46
C) 48	D) 49

Answer & Explanation Answer: B) 46

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

2 16594

Q:

Length of train is 170 meters and speed of train is 63 km/hour. This train can pass a bridge in 30 seconds, then find the length of the bridge.

A) 355 mts	B) 325 mts
C) 365 mts	D) 312 mts

Answer & Explanation Answer: A) 355 mts

Explanation:

Given speed = 63 km/hr = $63 \times \frac{5}{18} = \frac{35}{2}$ m/s

Let the length of the bridge = x mts

Given time taken to cover the distance of (170 + x)mts is 30 sec.

We know speed = $\frac{d i s \tan c e}{t i m e}$ m/s

$\Rightarrow \frac{35}{2} = \frac{170 + x}{30}$

--> x = 355 mts.

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Filed Under: Problems on Trains
Exam Prep: CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

19 16592

Q:

Hardware devices that are not part of the main computer system and are often added later to the system are ________

A) clip art	B) highlight
C) execute	D) peripherals

Answer & Explanation Answer: D) peripherals

Explanation:

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

73 16581

Q:

Select the option that will come next in the following figure series.

A) C	B) B
C) D	D) A

Answer & Explanation Answer: A) C

Explanation:

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Filed Under: Image Analysis
Exam Prep: Bank Exams

0 16581

Q:

217 x 217 + 183 x 183 = ?

A) 84521	B) 87487
C) 80578	D) 78458

Answer & Explanation Answer: C) 80578

Explanation:

${(217)}^{2} + {(183)}^{2}$

= ${(200 + 17)}^{2} + {(200 - 17)}^{2}$

It is in the form of ${(a + b)}^{2} + {(a - b)}^{2} = 2 (a^{2} + b^{2})$

= 2(40000 + 289) = 80578.

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

22 16576

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