143 seats
because 2920 seats/20 sections=143 seats in each section
Answer:
0.75
Step-by-step explanation:
The given sequence is an AP , as the difference of all the terms is same
Number of returns = 47
Number of returns that contain errors = 5
Number of returns that does not contain error = 47 - 5 = 42
P(selecting none that contains error in the unreplaced selection) = 42/47 x 41/46 x 40/45 = 68880 / 97290 = 0.708
option C is the correct answer.
246 divided by 3 should equal 82