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NDA 2019
Exam
NDA
Year
2019
Subject
Mathematics
Chapter
Probability

NDA 2019 · Mathematics · Probability

A fair coin is tossed and an unbiased dice is rolled together. What...

A fair coin is tossed and an unbiased dice is rolled together. What is the probability of getting a 2 or 4 or 6 along with head?

Options

  1. A12\frac{1}{2}
  2. B13\frac{1}{3}
  3. C14\frac{1}{4}
  4. D16\frac{1}{6}

Correct answer

C. 14\frac{1}{4}

Step-by-step solution

Total number of events with dice and coin =6×2=12=6 \times 2=12 Number of possibilities =(2,H),(4,H)=(2, \mathrm{H}),(4, \mathrm{H}) and (6,H)(6, \mathrm{H}) i.e., 3 ∴\therefore Probability =312=14=\frac{3}{12}=\frac{1}{4}
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