Explanation

This is a hypothetical sentence. 

Were is used with I in such sentences.

If I were you, I would not do it means اگر میں آپ کی جگہ ہوتا تو یہ نہیں کرتا

Explanation

Insulators are the substances that do not allow electricity to pass through them. Examples of insulators are wax, wood, mud and plastic etc

Explanation

Let the number of boys be x.

Number of girls is 120 – x.

Total number of chocolates received by boys and girls = 2x + 3(120 – x) = 300

=> 360 – x = 300 => x = 60.

So, the number of boys or girls is 60

Explanation

Let there be x pupils in the class.

Total increase in marks = (x * 1/2) = x/2

x/2 = (83 – 63) => x/2 = 20 => x = 40

Explanation

Both First and Second form of verbs are used in Active Voice.

Third form is always used in Passive Voice. 

Explanation

We generally use well with play.

Play well means اچھا کھیلنا

Babar plays well بابر اچھا کھیلتا ہے

Explanation

Positive degree: Good 

Comparative degree: Better

Superlative degree: Best 

Explanation

An output device is any device used to send data from a computer to another device or user.

Explanation

 Commissioner is the correct spelling.

 Commissioner means ناظم

Explanation

The International Business Machines Corporation, nicknamed Big Blue,

is an American multinational technology corporation

operations in over 175 countries.

Headquarters: Armonk, New York, United States

Founders: Herman Hollerith, Charles Ranlett Flint, Thomas J. Watson

Founded: June 16, 1911, Endicott, New York, United States