Explanation

Explanation

Let's denote the number as x.

Step 1: Formulate the equation based on the given information

(4/9)x = 12

Step 2: Solve for x

x = 12 * (9/4)

x = 3 * 9

x = 27

Explanation

Conditional-2 refers to unreal or hypothetical situations in the present or future.

Structure: If + past simple, would + base verb

("If I were the head... I would relax...") fits this pattern.

Explanation

Revised means changed or updated.

The antonym is varied, which implies inconsistency or non-uniformity.

Revised means تبدیل یا تازہ کاری

Varied means عدم مطابقت یا عدم یکسانیت

Explanation

"A few" means some, indicating a small number but not none — a positive quantity.

The sentence implies some friends are still available for help, so "A few" is correct.

Explanation

"Next week he will fly to Dubai" is grammatically correct and appropriate for indicating a future action.

Here's a detailed breakdown of why "will fly" is the best choice.

Explanation

Introspection is the method of examining one’s own thoughts, feelings, and behaviors by looking inward.

It is commonly used in psychology for self-observation and reflection.

Explanation

A hydraulic system works on Pascal's principle, which states that pressure applied to a confined fluid is transmitted equally in all directions.

This principle is used in devices like hydraulic lifts and brakes.

Explanation

A teacher’s personality helps build rapport and engage students effectively.

Relating well to the class creates a positive learning environment essential for success.

Explanation

Balancing the equation requires equal atoms of each element on both sides.

Here, 2 molecules of KNO₃ decompose into 2 molecules of KNO₂ and 1 molecule of O₂ gas.