Explanation

Irrelevant  غیر متعلقہ

Immaterial غیر مادی

Explanation

• Peon means چپراسی
• Woman means عورت
• Tom means بکر
• Horse means گھوڑا

Explanation

Usage of Across

Across has 3 different meanings.

Explanation

To convert Fahrenheit to Celsius:  

C = (F - 32) × 5/9  

C = (98 - 32) × 5/9 = 66 × 5/9 = 36.67°C

Explanation

The SI unit of volume is the cubic meter (m3), which is a derived unit.

1 m3 = 1 m • 1 m • 1 m.

***

The SI unit of energy/work is the joule (J)

Explanation

A derived quantity is obtained from fundamental quantities (like mass, length, and time).

Force = Mass × Acceleration (Newton’s Second Law), so it is derived from mass, length, and time.

Explanation

• Life can't sustain itself without water
• It is needed for important biological processes.
• Plants require water for photosynthesis.
• Animals need water for survival and body functions.

Explanation

Given:  

x² − x = 12  

y² − y = 12  

So both equations are equal:  

x² − x = y² − y  

⇒ x² − x − y² + y = 0  

⇒ (x² − y²) − (x − y) = 0  

⇒ (x − y)(x + y − 1) = 0  

Now set each factor to zero:  

1. x − y = 0 → ⇒ x = y  

2. x + y − 1 = 0 → ⇒ x + y = 1

Now plug into original equation to find values:

Try solving x² − x = 12  

⇒ x² − x − 12 = 0  

⇒ (x − 4)(x + 3) = 0  

⇒ x = 4 or x = -3

Case 1: x = 4  

If x + y = 1 ⇒ y = -3  

Then x − y = 4 − (−3) = 7

Case 2: x = -3  

If x + y = 1 ⇒ y = 4  

Then x − y = -3 − 4 = −7

So possible values of x − y = 0 or ±7

Explanation

5x - 4 = 4x - 4  

Value of x

Solution:

Subtract 4x from both sides:  

5x - 4x - 4 = -4  

x - 4 = -4  

Add 4 to both sides:  

x = 0  

Explanation

At STP, 1 mole of an ideal gas = 22.4 liters  

So, 2 moles = 2 × 22.4

= 44.8 liters