HARD
CAT
IMPORTANT
Earn 100

A natural number is chosen at random from the first 100 natural numbers. What is the probability that the number chosen is a multiple of 2 or 3 or 5 ?

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Important Questions on Probability

MEDIUM
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 25
A box contains 5 red balls, 8 green balls and 10 pink balls. A ball is drawn at random from the box. What is the probability that the ball drawn is either red or green?
HARD
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 26
A basket contains 10 apples and 20 oranges out of which 3 apples and 5 oranges are defective. If we choose two fruits at random, what is the probability that either both are oranges or both are non-defective?
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 27
In a class 40% of the students offered Physics, 20% offered Chemistry and 5% offered both. If a student is selected at random, find the probability that he has offered Physics or Chemistry only.
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 28
The probability that an MBA aspirant will join IIM is 25 and that he will join XLRI is 13. Find the probability that he will join IIM or XLRI.
MEDIUM
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 29
In a given race, the odds in favour of horses H1, H2, H3 and H4 are 1 : 2, 1 : 3, 1 : 4, 1 : 5 respectively. Find the probability that one of them wins the race
MEDIUM
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 1
If A and B are two events such that P(A)= 0.5, P(B) = 0.6 and P(A ∪ B) = 0.8. Find PAB?
HARD
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 4
A coin is tossed twice and four possible outcomes are assumed to be equally likely. If E is the event, "Both head and tail have appeared and F be the event, at most one tail is observed ; find PEF and PFE.
MEDIUM
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 20 - SNAP>CMAT>Q 11
In a class 45% students read English, 30% read French and 20% read both English and French. One student is selected at random. Find the probability that he reads French if it is known that he reads English.