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 Solve Polynomial Inequalities

Revision Notes

How to Find the Least Common Multiple (LCM)

Revision Notes

How to Convert Between Inches and Centimeters

Revision Notes

How to Use Basic Identities for Hyperbolic Functions (sinh, cosh, tanh)

Revision Notes

How to Understand Circle Theorems (Angles and Tangents)

Revision Notes

How to Calculate the Area of Any Triangle Using Trigonometry

Revision Notes

How to Use the Sine, Cosine, and Tangent Functions

Revision Notes

How to Use Similar Triangles

Revision Notes

How to Identify Independent vs. Dependent Events

Revision Notes

How to Identify Parallelograms, Rectangles, Rhombuses, and Squares

Revision Notes