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  4. Let x and y be distinct integers where 1 ≤ x ≤ 25 and 1 ≤ y ≤ 25. Then, the number of ways of choosing x and y, such that x+y is divisible by 5 , is

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Q. Let $x$ and $y$ be distinct integers where $1 \leq x \leq 25$ and $1 \leq y \leq 25$. Then, the number of ways of choosing $x$ and $y$, such that $x+y$ is divisible by 5 , is ____

JEE MainJEE Main 2023Permutations and Combinations

Solution:

Correct answer is '120'

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