a machine starts production of matchboxes at the rate of 12000 per hour. The rate of production decreases by 40% every hour. Calculate the total nimber of matchboxes produced in first 2 hours
Is it an arithmetic progression or geometric progression??
In the first hour produced "12000" units.
In the second hour produced "12000(1-0.4)=7200" units.
The total number of matchboxes produced in first 2 hours: "12000+7200=19200" .
This is a geometric progression with "a_1=12000, r=0.6."
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