Improvised explosive devices (IEDs) are responsible for many deaths in times of strife and war. Unmanned ground vehicles (robots) can be used to disarm the IEDs and perform other tasks as well. If the robots cost $130,000 each and the military arms unit signs a contract to purchase 3,500 of them now and another 6,500 one year from now, what is the equivalent annual cost of the contract over a 5-year period at 10% per year interest

$258,434,439.9

Explanation:

Calculation for what is the equivalent annual cost of the contract

Equivalent annual cost = [3,500 x $130,000 x A/P(10%, 5) ]+ [6,500 x $130,000 x P/F(10%, 5) x A/P(10%, 5)]

Equivalent annual cost = [$455,000,000 x 0.2638] + [$845,000,000 x 0.6209 x 0.2638]

Equivalent annual cost =$120,029,000+$138,405,439.9

Equivalent annual cost =$258,434,439.9

Therefore the equivalent cost of the contract is determined to be $258,434,439.9

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