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Probability — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsProbability1 Mark
MCQ
Two dice are thrown together. The probability of getting a doublet is
  • A
    $\frac{1}{3}$
  • ✓
    $\frac{1}{6}$
  • C
    $\frac{1}{4}$
  • D
    $\frac{2}{3}$
✓

Answer

Correct option: B.
$\frac{1}{6}$
(b)
Number of all possible outcomes $=6 \times 6=36$.
The doublets are $(1,1),(2,2),(3,3),(4,4),(5,5)$ and $(6,6)$
$=6$ pair
$\therefore$ Required probability $=\frac{6}{36}=\frac{1}{6}$

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