Percentage, Base & Rate

What is the formula to solve base(B)?

• B = P x R

• B = R x P

What is the formula to solve for percentage(P)?

• P = B x R

• P = B x B

Draw the PRB magic triangle.

What is 10% of 50?

• 5

• 10

• 20

• 50

What is 25% of 100?

• 10

• 15

• 20

• 25

8 is 20% of what number?

• 20

• 40

• 60

• 80

10 is 50% of what number?

• 20

• 40

• 60

• 80

True or False?

Base is always larger than Percentage.

• True

• False

True or False?

Rate in percent must be transformed to decimal first before solving.

• True

• False

What is the meaning of P in PRB triangle?