What is 3 increased by 250%? decreased by 100%? decreased by 150%?

Part A: Number 3 increased by 250% = 10.5

Part B: Number 3 decreased by 100% = 0

Part C: Number 3 decreased by 150% = -1.5

Step-by-step explanation:

To calculate the increase or decrese

Let the original number is x and percentage increase or decrese is r%

So, of the number x is increased by r %:

The increase or the decrease will be ⇒

The number after the increase will be

The number after the decrease will be

For the g iven question:

Part A: What is 3 increased by 250%?

x=3 , r =250 ⇒ = 3 * 3.5 = 10.5

Part B: What is 3 Decreased by 100%?

x=3 , r =100⇒ = 3 * 0 = 0

Part C: What is 3 Decreased by 150%?

x=3 , r =100⇒ = 3 * -0.5 = -1.5