Engineering Economics
What is the type of annuity where the payments are made at the beginning of the each period starting from the first period?

Deferred annuity
Perpetuity
Ordinary annuity
Annuity due

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Engineering Economics
The monthly demand for ice cans being manufactured by Mr. Camus is 3200 pieces. With a manual operated guillotine, the unit cutting cost is P25.00. An electrically operated hydraulic guillotine was offered to Mr. Camus at a price of P275,000.00 and which cuts by 30% the unit cutting cost. Disregarding the cost of money, how many months will Mr. Camus be able to recover the cost of the machine if he decides to buy now?

11 months
12 months
13 months
10 months

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