The First Unit Produced in a Process Takes 480 Hours

question 3

Multiple Choice

The first unit produced in a process takes 480 hours.As the number of units produced doubles,production time decreases by 18%.Using the arithmetic approach,calculate the production time for the eighth unit.

• A)217 hours
• B)146 hours
• C)178 hours
• D)265 hours

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Definitions:

Slate

A compact, fine-grained, low-grade metamorphic rock that possesses slaty cleavage.

Hornfels

Hornfels is a metamorphic rock formed by the contact between mudstone or other clay-rich rock and a hot igneous body, characterized by its hardness and fine grain.

Greenstone

Metamorphosed basalt or other mafic volcanic rock, typically found in ancient geological formations.

Banded Gneiss

A metamorphic rock characterized by alternating light and dark mineral bands, formed under high-temperature and high-pressure conditions.