Last year the range of the annual sales of the 100 lamps at Company X was $30,000. If the annual sale of each of the 100 lamps this year is 10 percent greater than it was last year, what is the range of the annual sales of the 100 lamps this year?  Choose the correct answer: A) $27,000 B) $30,000 C) $33,000 D) $36,000 E) $63,000
let the lowest sale be x.   Therefore, highest sale is x +30000.   Now sale of each lamp is increased by 10%.   Therefore the sale will remain arranged in the same order as before.   or Lowest sale = 1.1x and Highest = 1.1 * (x+30000)   or Range = highest - lowest = 1.1 * (x+30000) - 1.1x   = 33000, Hence, $33,000
<result>C</result>
Last year the range of the annual sales of the 100 lamps at Company X was $30,000. If the annual sale of each of the 100 lamps this year is 10 percent greater than it was last year, what is the range of the annual sales of the 100 lamps this year?