Explanation

Factorial means multiplying all whole numbers down to 1:

$$n!=n\times (n-1)\times (n-2)\times \cdots \times 1$$

For consistency, we define:

$$0!=1$$

$$Last\; updated\; by\; NA\; on\; 23-April-2026$$

Explanation

Let apple = x, orange = y

5x + 4y = 340

Try options:

B) 5×40 + 4×20 = 200 + 80 = 340 

Explanation

• Heart of Pakistan is known as Lahore
• Due to its rich cultural heritage, historical landmarks, and vibrant arts scene.
• Also called the "City of Colleges." 
• The second-largest city in Pakistan
• Capital of the province of Punjab
• 26th largest in the world

Last updated by NA on 25-April-2026

Explanation

• Eagle starts with the vowel sound /iː/ (a true vowel sound).
• Europe and Eulogy start with a consonant 'y' sound (/j/).

Last updated by NA on 25-April-2026

Explanation

Let's denote the numbers as 8x and 3x.

Given: 8x - 3x = 20

5x = 20

x = 4

Step 1: Find the numbers

First number = 8x = 8 * 4 = 32

Second number = 3x = 3 * 4 = 12

Step 2: Find the sum

Sum = 32 + 12 = 44

Last updated by NA on 24-April-2026

Explanation

Step 1: Assume original price = 100

(This makes percentage calculations easy)

Step 2: Increase by 20%

Step 3: Apply 25% discount on new price

Step 4: Find net change

Original price = 100
Final price = 90

Change = 90 − 100 = −10

Step 5: Percentage change

Explanation

Explanation

• The Soviet Union launched the first artificial satellite
• Satellite: Sputnik 1 (meaning "fellow traveller").
• Date: October 4, 1957.
• First US Satellite: Explorer 1 (January 31, 1958)
• A major milestone in space exploration and a key event in the Cold War.

Last updated by NA on 25-April-2026

Explanation

Explanation