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Probability — Maths STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceMathsProbability2 Marks
MCQ
From a book containing 100 pages, one page is selected randomly. The probability that the sum of the digits of the page number of the selected page is 11, is
  • ✓
    $\frac{2}{25}$
  • B
    $\frac{9}{100}$
  • C
    $\frac{11}{100}$
  • D
    $\frac{1}{100}$
✓

Answer

Correct option: A.
$\frac{2}{25}$
(A)
Favourable ways
$=\{29,92,38,83,47,74,56,65\}$
Hence, required probability $=\frac{8}{100}=\frac{2}{25}$

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