s Expenditures for maintenance of a certain machine are expected to be $900 in year two, $1,400 in year five, and a uniform amount of $2,000 in years six through nine. At an interest rate of 10% per year, the present worth of the expenditures is nearest to A) $4,521 B) $4,973 C) $5,192 D) $5,549 6 Costs for maintenance of buildings at an industrial complex are expected to be $1,000 in year three, $1,200 in year four and amounts increasing by $200 per year thereafter through year nine. At an interest rate of 10% per year, the present worth of the expenditures is nearest to: A) $5,163 B) $5,575 C) $6,133 D) $7,421 7 The costs of fuel for a smelting operation are expected to be $50,000 in year three, $52,500 in year four and amounts increasing by 5% per year thereafter through year ten. At an interest rate of 8% per year, the present worth of the fuel cost is nearest to: A) $190,400 B) $204,600 C) $277,900 D) $336,300 8 Payments of $1,000 in year two and $4,000 in year five are equivalent to uniform payments in years three through seven at an interest rate of 10% per year nearest to: A) $899 B) $985 C) $1,177 D) $3,732 At an interest rate of 10% per year, the length of time required from time zero to recover an initial investment of $10,000 by receipts of $1,000 per year beginning in year three is nearest to: A) 10 years B) 20 years C) 100 years D) never 10 The number of years from now that an initial investment of $1,000,000 would be recovered from uniform receipts of $131,000 per year beginning three years from now at an interest rate of 10% per year is nearest to: A) 24 B) 29 C) 35 D) 40