One Highway Worker Can Pick Up All the Trash on a Strip

question 207

Essay

One highway worker can pick up all the trash on a strip of highway in 8 hours, and his helper can pick up the trash in 9 hours. How long will it take them if they work together?
__________ hr

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Definitions:

Division

In business, a division refers to a distinct part of a company that focuses on a particular market, product line, or service, often operating with a certain degree of independence.

Decimal Point

A symbol used to separate the integer part from the fractional part of a number in decimal notation.

Multiplication

An arithmetic operation that combines two numbers to produce a product.

Division

A mathematical operation where a number, the dividend, is divided by another number, the divisor, to result in a quotient and sometimes a remainder.