Solve the problem.A box contains a total of n + 2 light bulbs. In this box, there are 7 defective 40-watt bulbs, 4 defective 60-watt bulbs, and 5 defective 100-watt bulbs. If a light bulb is chosen at random by a quality control inspector, the probability, or chance, of one of the defective light bulbs being chosen is + + .Simplify this expression and then use the simplified expression to evaluate n = 98 and interpret the result.

Question

A. ; when there are 100 light bulbs, there are 4 chances in 25 that a defective light bulb is chosen.
B. ; when there are 100 light bulbs, there are 7 chances in 50 that a defective light bulb is chosen.
C. ; when there are 100 light bulbs, there are 8 chances in 25 that a defective light bulb is chosen.
D. ; when there are 100 light bulbs, there are 9 chances in 50 that a defective light bulb is chosen.

Answer 1

Answer: A