Question Details

Detailed explanation and options for the selected question.

A number is increased by 20% and then decreased by 10%. What is the net change?

A. 10% increase
B. 8% increase
C. 8% decrease
D. 10% decrease

Explanation:

Net change = (1.2×0.9 - 1) = 1.08 - 1 = 0.08 = 8% increase. Other options are incorrect.

Related Topics

How to Use the Circle-Sector Area Formula

Revision Notes

How to Solve Rational Equations (Equations with Fractions)

Revision Notes

How to Find the Midpoint Between Two Points

Revision Notes

How to Calculate Probability of Simple Events

Revision Notes

How to Solve Quadratic Equations (Using the Quadratic Formula)

Revision Notes

How to Calculate Determinants of 2x2 and 3x3 Matrices

Revision Notes

How to Solve Systems of Nonlinear Equations

Revision Notes

How to Solve Projectile Motion Problems (Ignoring Air Resistance)

Revision Notes

What Is the Central Limit Theorem?

Revision Notes

Percent To Fraction And Decimal Numbers

Revision Notes