Engineering Economics
What is the type of annuity that does not have a fixed time span but continues indefinitely or forever?

Perpetuity
Annuity due
Deferred annuity
Ordinary annuity

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Engineering Economics
The institute of Electronics and Communications Engineers of the Philippines (IECEP) is planning to put up its own building. Two proposals being considered are:A. The construction of the building now to cost P 400,000B. The construction of a smaller building now to cost P300,000 and at the end of 5 years, an extension to be added to cost P 200,000.By how much is proposal B more economical than proposal A if interest rate is 20% and depreciation to be neglected?

P 19,518.03
P 19,423.69
P 19,122.15
P 19,624.49

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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?

10 months
11 months
12 months
13 months

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Engineering Economics
Which is NOT an essential element of an ordinary annuity?

The payments are made at equal interval of time.
The first payment is made at the beginning of the first period.
Compound interest is paid on all amounts in the annuity.
The amounts of all payments are equal.

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