Q80.A seven digit number is formed using digits 3, 3, 4, 4, 4, 5, 5 . The probability, that number so formed is divisible by 2 , is (1) 4 (2) 3 7 7 (3) 1 (4) 6 7 7
What This Question Tests
This question involves calculating the probability of a seven-digit number (formed with repeated digits) being divisible by 2, requiring knowledge of permutations with repetition and divisibility rules.
Concepts Tested
Formulas Used
n! / (n1! n2! ...)
Favorable outcomes / Total outcomes
📚 NCERT Sections This Tests
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📋 Question Details
- Chapter
- Probability
- Topic
- Permutation and Combination
- Year
- 2021
- Shift
- 26 Feb Shift 2
- Q Number
- Q80
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 7: Permutations and Combinations, Class 12 Mathematics Ch 13: Probability
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