A stationer bought 2,000 exercise books. He distributed 200 exercise books to the
students from poor economical background
as donation. He sold each
Of
the remaining
exercise books at Rs 10 more than the
cost price of each of gained 8%. , find
the cost price of each exercise book.

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол