Q80.The probability, that in a randomly selected 3 -digit number at least two digits are odd, is (1) 19 (2) 16 36 36 (3) 19 (4) 13 33 36
What This Question Tests
The question requires calculating the probability of a specific event (at least two odd digits) in a randomly selected 3-digit number by counting favorable outcomes and total possible outcomes.
Concepts Tested
Formulas Used
P(E) = (Number of favorable outcomes) / (Total number of outcomes)
📚 NCERT Sections This Tests
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
12.6 — (A) Using The Bohr’S Model Calculate The Speed Of The Electron In A
Physics Class 12 · Chapter 12
12.6 (a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels.
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Chemistry Class 11 · Chapter 5
5.12 Write all the geometrical isomers of [Pt(NH3)(Br)(Cl)(py)] and how many of these will exhibit optical isomers?
📋 Question Details
- Chapter
- Probability
- Topic
- Counting Principles and Probability
- Year
- 2022
- Shift
- 28 Jun Shift 1
- Q Number
- Q80
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 16: Probability
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