The surface area of a certain plant that requires painting is 8 ,000 sq ft. Two kinds of paint are available whose brand are J and K .Paint J costs P1.40 per sq.ft but needs renewal at the end of every 4 years while paint K costs P1.8 per square ft. If money

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter17: Capital And Time
Section: Chapter Questions
Problem 17.6P
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The surface area of a certain plant that requires painting is 8 ,000 sq ft. Two kinds of paint are available
whose brand are J and K .Paint J costs P1.40 per sq.ft but needs renewal at the end of every 4 years while paint K costs
P1.8 per square ft. If money is worth 16% effective , how often should paint K be renewed so that it will be as
economical as paint J? 

A) 5.6.years C) 3.9 years
B) 4.2 years D) 5.3 years

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