Question

from a book containing 100pages ,one is selected at random the probility that the sum of digits of the page mmumber is11​

Answer 1

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no. of doubles from 1 to 100:11,22,33,44,55,66,77,88,99.

∴ probability =

total no. of outcomes

no. of favorable outcomes

=

10

9

∴ Probability =

100

9

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Answer 2

Answer:

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