Explanation

NOTE: There was no version of Microsoft Windows officially launched as "Windows 9." BUT ACCORDING TO THE ASKED QUESTION WE SELECTED OPTION D. 

Microsoft skipped Windows 9, going directly from Windows 8.1 to Windows 10. 

Windows 9 and Windows 10 are both operating systems.

Specifically, versions of Microsoft Windows.

Windows 10 is the more recent version,

And it is part of the Windows NT family.

Explanation

• HTML is used to create a web page
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• HTML is an abbreviation for Hypertext Markup Language
• (HTML) is the standard markup language for documents designed to be displayed in a web browser.
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• Vu FIA CBT PAPER 15-12-2021

Explanation

Let's assume the cost of the bike is x. Then, the cost of the car is 400% greater than the cost of the bike, which means the cost of the car is x + 400% of x = x + 4x = 5x.

The total cost of 5 cars and 10 bikes is:

5(5x) + 10x = 25x + 10x = 35x

The increase in cost is:

5 cars: 15% of 5(5x) = 0.15(25x) = 3.75x

10 bikes: 20% of 10x = 0.20(10x) = 2x

Total increase = 3.75x + 2x = 5.75x

The percentage increase is:

(5.75x / 35x) × 100 = (575 / 3500) × 100 = 16 3/7%

Explanation

Initially, the average of five numbers is 27, so the sum of these five numbers is:

5 x 27 = 135

If one number is excluded, the average becomes 25, which means the sum of the remaining four numbers is:

4 x 25 = 100

Now, let's find the excluded number by subtracting the sum of the remaining four numbers from the initial sum:

135 - 100 = 35

So, the excluded number is 35.

Explanation

Initially, the salaries are in the ratio 1:3:4. Let's assume the salaries are x, 3x, and 4x.

After the increases:

A's salary increases by 5%, so the new salary is x + 5% of x = x + 0.05x = 1.05x

B's salary increases by 10%, so the new salary is 3x + 10% of 3x = 3x + 0.10(3x) = 3.30x

C's salary increases by 15%, so the new salary is 4x + 15% of 4x = 4x + 0.15(4x) = 4.60x

Now, let's find the ratio of the increased salaries:

1.05x : 3.30x : 4.60x

To simplify, divide each term by 0.05x (the smallest common multiple):

1.05x / 0.05x = 21

3.30x / 0.05x = 66

4.60x / 0.05x = 92

So, the increased salaries are in the ratio 21:66:92.

Explanation

"A" is used before a singular noun that begins with a consonant sound.

In this case, "one-eyed" starts with the "w" sound in "one."

Thus, the phrase should read "I saw a one-eyed person."

Explanation

The correctly punctuated sentence is "I met a beautiful European woman."

There is no need for a comma before "European" because it is not a separate clause or non-essential information; it is essential to describe the type of woman.

Using commas in this context would disrupt the flow of the sentence and create confusion.

Explanation

"My" is the correct possessive adjective for friends.

"Myself" is the appropriate reflexive pronoun used for emphasis or to indicate being alone.

In this case, both words are used correctly according to grammar rules.

Explanation

I met a <-----( article )European <---(noun)

The indefinite article (a, an) is used before a noun that is general or when its identity is not known.

Explanation

"Left" is correct.

This is because the simple past tense is used.

It describes a specific time in the past (fifteen years ago).