Solve the Problem $n ( A ) = 25 , n ( A \cup B ) = 73$

question 6

Multiple Choice

Solve the problem.
-If $n ( A ) = 25 , n ( A \cup B ) = 73$ , and $n ( A \cap B ) = 21$ , find $n ( B )$ .

• A) 69
• B) 68
• C) 48
• D) 70

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Definitions:

Ratio

An expression that compares two quantities in a specified order.

Fuel Mix

The combination of various fuel sources used to generate energy or power.

Two-Cycle Engine

An internal combustion engine that completes a power cycle with two strokes of the piston during only one crankshaft revolution.

Ratio

A mathematical expression that represents the relationship between two numbers, showing how many times one value contains or is contained within the other.