GRE
Exam
Numerical Ability
Probability
If an integer is randomly selected from all positive 2-digit integers
(i.e., the integers 10, 11, 12, . . . , 99), find the probability that the
integer chosen has
(a) a "4" in the tens place
(b) at least one "4"
(c) no "4" in either place
Read Solution (Total 4)
-
- a)1/9
b)2/9
c)7/9 - 12 years agoHelpfull: Yes(3) No(0)
- (a) 10/90 = 1/9
(b) 72/90 = 4/5
(c) 18/90 = 1/5 - 15 years agoHelpfull: Yes(1) No(12)
- a)9/10
b)2/9
c)7/9 - 12 years agoHelpfull: Yes(1) No(1)
- 1/9
2/9
1/5 - 8 years agoHelpfull: Yes(0) No(0)
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