Exams Questions and Answers

Q:

Two pipes A and B can fill a tank in 24 hours and $17 \frac{1}{7}$ hours respectively. Harihar opened the pipes A and B to fill an empty tank and some times later he closed the taps A and B , when the tank was supposed to be full. After that it was found that the tank was emptied in 2.5 hours because an outlet pipe "C" connected to the tank was open from the beginning. If Harihar closed the pipe C instead of closing pipes A and B the remaining tank would have been filled in :

A) 2 hours	B) 8 hours
C) 6 hours	D) 4 hours

Answer & Explanation Answer: B) 8 hours

Explanation:

Efficiency of Inlet pipe A = 4.16% $(\frac{100}{24})$

Efficiency of Inlet pipe B = 5.83% $(\frac{100}{17 \frac{1}{7}})$

Therefore, Efficiency of A and B together = 100 %

Now, if the efficiency of outlet pipe be x% then in 10 hours the capacity of tank which will be filled = 10 * (10 - x)

Now, since this amount of water is being emptied by 'C' at x% per hour, then

$\frac{10 x (10 - x)}{x} = 2.5 h r s$

=> x = 8

Therefore, in 10 hours 20% tank is filled only. Hence, the remaining 80% of the capacity will be filled by pipes A and B in 80/10 = 8 hours

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

38 18207

Q:

Insert the missing character marked as '?'.

%MCEPASTEBIN%

A) 19	B) 17
C) 16	D) 15

Answer & Explanation Answer: C) 16

Explanation:

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

0 18201

Q:

Arrange the given words in the sequence in which they occur in the dictionary.

1. Scrape

2. Scramble

3. Scream

4. Scornful

5. Scour

A) 12354	B) 35421
C) 51243	D) 45213

Answer & Explanation Answer: D) 45213

Explanation:

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

0 18184

Q:

Refer the below data and answer the question.

Who has the least weight to the height ratio?

A) Ahilya	B) Aishwarya
C) Akanksha	D) Alisha

Answer & Explanation Answer: A) Ahilya

Explanation:

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Filed Under: Table Charts
Exam Prep: Bank Exams

0 18181

Q:

Select the correct set that represents the following Venn diagram.

A) Music, sports, educated people	B) Mother, father, family
C) Cat, toys, girl	D) Dancers, teacher, cows

Answer & Explanation Answer: B) Mother, father, family

Explanation:

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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

3 18181

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 18175

Q:

Optical fiber works on the principle of

A) Scattering	B) interference
C) total internal reflection	D) refraction

Answer & Explanation Answer: C) total internal reflection

Explanation:

Optical_fiber_works_on_the_principle_of1556277954.jpg image

Optical fiber works on the principle of total internal reflection.

The Total Internal Reflection is the phenomenon in which the complete reflection of a light ray reaching an interface with a less dense medium when the angle of incidence exceeds the critical angle.

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

40 18169

Q:

Select the option that represents the number of triangles in the following figure.

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

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