We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.

a) How many numbers among 1,2,3,...,1000 are not divisible by 9?



b) Dmitri has a pair of standard dice; one die is blue, and the other die is yellow. He rolls both of his dice. How many ways could the number on the blue die be larger than the number on the yellow die?



c) Hae Suk flips a penny, a nickel, and a dime. How many ways can she get at least two heads?

 Apr 14, 2019


 Apr 15, 2019

8 Online Users