- A certain jar contains 5 marbles, r of which are red. If two marbles are to
be selected at random, and the probability that both marbles will be red is
1
10 , what is the value of r?
A 1
B 2
C 3
D 4
E 5
S T O P.
This is the end of Section 5.496 PART 5 ■ GRE PRACTICE TESTS05-GRE-Test-2018_463-582.indd 496 12/05/17 12:14 pm