Four Commuter Trains and Two Express Buses Depart from City

question 86

Multiple Choice

Four commuter trains and two express buses depart from city A to city B in the morning, and three commuter trains and three express buses operate on the return trip in the evening. In how many ways can a commuter from city A to city B complete a daily round trip via bus and/or train? ​

• A) 23 possible ways
• B) 11 possible ways
• C) 36 possible ways
• D) 18 possible ways
• E) 60 possible ways
• F) 63 possible ways

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Definitions:

Numerals

Symbols used to represent numbers in a mathematical or quantitative context.

Parcel Post

A postal service for sending packages and parcels through the mail, differing in terms of weight and size regulations from regular mail services.

Accordion Fold

A method of folding paper in a zig-zag pattern, similar to the musical instrument's bellows, often used in brochures or maps.

Window Envelope

An envelope featuring a transparent panel, allowing the name and address on the document inside to be visible.