a box contains 18 blue flashlights, 3 red flashlights, 7 silver flashlights, and 2 black flashlights. the…
a box contains 18 blue flashlights, 3 red flashlights, 7 silver flashlights, and 2 black flashlights. the flashlights are identical in size and shape. if one flashlight is chosen at random, what is the probability that the flashlight will be either blue or black?\n1/3\n1/2\n3/5\n2/3
Answer
Explanation:
Step1: Calculate total number of flashlights
$18 + 3+7 + 2=30$
Step2: Calculate number of blue or black flashlights
$18+2 = 20$
Step3: Calculate the probability
The probability $P=\frac{20}{30}=\frac{2}{3}$
Answer:
$\frac{2}{3}$