Selected MCQ

Current Question
Three dice are thrown. Find the number of outcomes where the sum is 10.
  • A. 36
  • B. 81
  • C. 91
  • D. 116
Correct Answer: C
Explanation:
Count valid combinations.
Related Question 1
Three dice are thrown. Probability that no two show same number is ____.
  • A. 7/12
  • B. 5/9
  • C. 1/36
  • D. 5/12
Correct Answer: B
Explanation:
Favorable = 120 → 120/216 = 5/9.
Related Question 2
Three dice are thrown. Probability that exactly two show same number is ____.
  • A. 5/9
  • B. 5/12
  • C. 1/36
  • D. 7/12
Correct Answer: B
Explanation:
Favorable outcomes = 90 → 90/216 = 5/12.
Related Question 3
Three dice are thrown. Probability that all show the same number is ____.
  • A. 1/216
  • B. 1/36
  • C. 5/9
  • D. 5/12
Correct Answer: B
Explanation:
Favorable = 6, total = 216 → 6/216 = 1/36.
Related Question 4
Three numbers are co-prime. The product of the first two is 551. Find the third.
  • A. 75
  • B. 81
  • C. 85
  • D. 89
Correct Answer: C
Explanation:
Factorization approach.
Related Question 5
Three consecutive odd integers have a sum such that the last two exceed the first by 13. Find numbeRs.
  • A. 9,11,13
  • B. 11,13,15
  • C. 13,15,17
  • D. 7,9,11
Correct Answer: D
Explanation:
Solve a linear relation.