Explanation

2 × (5 - 3) × 5  

= 2 × 2 × 5  

= 4 × 5  

= 20

Explanation

Profit = Selling Price - Cost Price  

= 28,500 - 25,000 = 3,500

Profit % = (Profit / Cost Price) × 100  

= (3,500 / 25,000) × 100  

= 14%

Explanation

Average speed = Total distance ÷ Total time  

= 150 km ÷ 3 h  

= 50 km/h

Explanation

- A = 1  

- H = 8  

To find:  

A + H - 2

1. Substitute values:  

   A + H - 2 = 1 + 8 - 2

2. Add A and H:  

   1 + 8 = 9

3. Subtract 2:  

   9 - 2 = 7

Explanation

An odd number is a number that cannot be evenly divided by 2. 

17: is not divisible by 2, making it an odd number. 

12: is divisible by 2 (12/2=6), so it's even. 

24: is divisible by 2 (24/2=12), so it's even. 

18: is divisible by 2 (18/2=9), so it's even. 

Explanation

9 × 8 - 5

= 72 - 5

= 67 

Explanation

2024 is a leap year.

Leap years are generally divisible by four, 

2021: Not divisible by 4.

2022: Not divisible by 4.

2025: Not divisible by 4.

Explanation

10% means 10 out of 100:  

(10/100) × 450 = 45

Explanation

Subtract the numerators:  

(3 − 4) / 5 = -1 / 5

Explanation

x + x = 2x  

So, x + x - 2

= 2x - 2