Skip to content
Philoid
Browse Saved
Back to chapter
Maths
31. Probability
Home · Class 12 · Maths · Ref. Book · 31. Probability
Prev
Next
Q10 of 249 Page 31

Mark the correct alternative in each of the following:

Three integers are chosen at random from the first 20 integers. The probability that their product is even is


the product of 3 randomly chosen integers are even only if there are even nos.

P(even) = 1-P(odd)


P(odd)



P(even)

More from this chapter

All 249 →
8

Mark the correct alternative in each of the following:

A person writes 4 letters and addresses 4 envelopes. If the letters are placed in the envelopes at random, then the probability that all letters are not placed in the right envelopes, is


9

Mark the correct alternative in each of the following:

A speaks truth in 75% cases and B speaks truth in 80% cases. Probability that they contradict each other in a statement, is


11

Mark the correct alternative in each of the following:

Out of 30 consecutive integers, 2 are chosen at random. The probability that their sum is odd, is


12

Mark the correct alternative in each of the following:

A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball is selected random wise, the probability that it is black or red ball is


Questions · 249
31. Probability
1 2 2 3 4 5 6 7 8 9 1 2 3 4 5 6 6 6 7 8 9 10 11 12 13 14 1 2 3 4 5 5 5 5 6 7 8 8 8 9 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved