HARD
IBPS PO Prelims
IMPORTANT
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The number of all possible selections of one or more questions from 10 given questions, each question having one alternative is _______.

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Important Questions on Permutation, Combination & Probability

HARD
IBPS PO Prelims
IMPORTANT
Quantitative Aptitude for Competitive Exam>Chapter 12 - Permutation, Combination & Probability>EXERCISE>Q 30
A five digit number is formed with the digits 0, 1, 2, 3 and 4 without repetition. Find the chance that the number is divisible by 5.
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IBPS PO Prelims
IMPORTANT
Quantitative Aptitude for Competitive Exam>Chapter 12 - Permutation, Combination & Probability>EXERCISE>Q 31
All possible two-factor products are formed from the numbers 1, 2, 3, 4,..........., 200. The number of factors out of total obtained which are multiples of 5 is ______.