Exams Questions and Answers

How many words can be formed with or without meaning by using three letters out of k, l, m, n, o without repetition of alphabets.

A) 60	B) 120
C) 240	D) 30

Answer & Explanation Answer: A) 60

Explanation:

Given letters are k, l, m, n, o = 5

number of letters to be in the words = 3

Total number of words that can be formed from these 5 letters taken 3 at a time without repetation of letters = $5 P_{3} ways .$

$\Rightarrow 5 P_{3} = 5 x 4 x 3 = 60 words .$

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Filed Under: Permutations and Combinations
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10 4829

Solve the given math puzzle?

math_puzzle21543466621.jpg image

A) 11	B) 3
C) 10	D) 1

Answer & Explanation Answer: C) 10

Explanation:

From the given data,

1 + 9 + 8 = 1

ONE + NINE + EIGHT

Consider the first letters and join them viz O N E = 1

So, now consider 2 + 8 + 9 in similar way

TWO+EIGHT+NINE

First letters are T E N = 10

2 + 8 + 9 = 1⃣0⃣

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Filed Under: Math Puzzles
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11 4829

Q:

A person purchase 50 mangoes he sells 10 at 20% profit, 20 at 30% profit and rest got rotten. Find its total loss or profit%?

A) 28% B) 26%

C) 24% D) 22%

A) 28%

B) 26%

C) 24%

D) 22%

Answer & Explanation Answer: C) 24%

Explanation:

Let the cost price of each mango be Rs. 1

So 50 mangoes costs = Rs. 50

20% Profit on Selling Price of 10 mangoes = Rs. 12

30% Profit on Selling Price of 20 mangoes = Rs. 26

Total = Rs. 38

Loss = 50 - 38 = 12

Loss% = (12/50) x 100 = 24%.

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Filed Under: Percentage
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5 4828

Q:

From the given series of numbers, if half of the second highest number is subtracted from the third highest number, what will be the value ?

519 328 746 495 837

A) 146 B) 203

C) 345 D) 96

A) 146

B) 203

C) 345

D) 96

Answer & Explanation Answer: A) 146

Explanation:

From the given series of numbers, if half of the second highest number is subtracted from the third highest number, what will be the value ?

Now arranging the given numbers in descending order.
837 746 519 495 328

519 - 746/2 = 519 - 373 = 146.

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Filed Under: Numbers
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3 4828

Q:

MS-EXCEL is based on

A) OS/2 B) UNIX

C) WINDOWS D) DOS

A) OS/2

B) UNIX

C) WINDOWS

D) DOS

Answer & Explanation Answer: C) WINDOWS

Explanation:

Microsoft Excel is a spreadsheet developed by Microsoft for Windows, macOS, Android and iOS. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications.

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Filed Under: Computer
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4 4826

Q:

In a certain code language, “book is tough” is written as “fu la mi”, “tough can easy” is written as “fu muk po” and “easy not book” is written as “ti po la”. What is the code for “tough” in that code language?

A) mi B) po

C) la D) fu

A) mi

B) po

C) la

D) fu

Answer & Explanation Answer: D) fu

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 4825

Q:

Break the logic behind the given mathematical puzzle?

A) 7 B) 8

C) 11 D) 13

A) 7

B) 8

C) 11

D) 13

Answer & Explanation Answer: B) 8

Explanation:

In the given puzzle,

The logic is in the format of lets say, a/b

In that case b doesn't matter, because

2/2 = 1,

6/5 = 6/2 = 3,

10/11 = 10/2 = 5

This means that equation is a/2

So 16/19 is equal 16/2 = 8.

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Filed Under: Math Puzzles
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19 4823

Q:

When $720 is invested for 36 months it earns $205.20 simple interest. Find the yearly interest rate.

A) 7.5% B) 8.5%

C) 9.5% D) 10.5%

A) 7.5%

B) 8.5%

C) 9.5%

D) 10.5%

Answer & Explanation Answer: C) 9.5%

Explanation:

r = (100 x I)/(P x T)

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Filed Under: Simple Interest
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3 4823

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