Practice Questions on ProbabilityAptitude Questions and Answers

Easy Probability Question - 11

 Q11. Two cards are drawn from a pack of well shuffled cards. Find the probability that one is a club and other in King.
 A. 1/13 B. 4/13 C. 1/52 D. 1/26

Easy Probability Question - 12

 Q12. The odds against an event are 5:3 and the odds in favour of another independent event are 7:5. Find the probability that at least one of the two events will occur.
 A. 52/96 B. 69/96 C. 71/96 D. 13/96

Easy Probability Question - 13

 Q13. A special lottery is to be held to select a student who will live in the only deluxe room in a hostel. There are 100 Year-III, 150 Year-II and 200 Year-I students who applied. Each Year-III's name is placed in the lottery 3 times; each Year-II's name, 2 times and Year-I's name, 1 time. What is the probability that a Year-III's name will be chosen?
 A. 1/8 B. 2/9 C. 2/7 D. 3/8

Easy Probability Question - 14

 Q14. If the chance that a vessel arrives safely at a port is 9/10 then what is the chance that out of 5 vessels expected at least 4 will arrive safely?
 A. $\dfrac{14 × 9^4}{10^5}$ B. $\dfrac{15 × 9^5}{10^4}$ C. $\dfrac{14 × 9^3}{10^4}$ D. $\dfrac{14 × 9^6}{10^5}$

Easy Probability Question - 15

 Q15. In a charity show tickets numbered consecutively from 101 through 350 are placed in a box. What is the probability that a ticket selected at random (blindly) will have a number with a hundredth digit of 2?
 A. 0.285 B. 0.40 C. 100/249 D. 99/250
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