jee-advanced 1999 Q25

jee-advanced · India 3 marks Probability Definitions Probability Involving Algebraic or Number-Theoretic Conditions

25. If the integers $m$ and $n$ are chosen at random between 1 and 100 , then the probability that a number of the form $7 m + 7 n$ is divisible by 5 equals :
(A) $1 / 4$
(B) $1 / 7$
(C) $1 / 8$
(D) $1 / 49$

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DIRECTIONS : Question numbers $26 - 35$ carry 3 marks each and may have more than one correct answers. All correct answers must be marked to get any credit in these questions.

25. If the integers $m$ and $n$ are chosen at random between 1 and 100 , then the probability that a number of the form $7 m + 7 n$ is divisible by 5 equals :\\
(A) $1 / 4$\\
(B) $1 / 7$\\
(C) $1 / 8$\\
(D) $1 / 49$

\section*{III askllTians ||}
\section*{... Powered By IITians}
DIRECTIONS : Question numbers $26 - 35$ carry 3 marks each and may have more than one correct answers. All correct answers must be marked to get any credit in these questions.\\

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