Solve this:
Q. The number of ways to select 2 numbers from {0,1,2,3,4} such that the sum of the squares  of the  selected numbers is divisible by 5 are (repetition of  digits  is allowed}.

Dear Student,
Please find below the solution to the asked query:

$$\begin{gathered} \mathrm{We} \mathrm{have} \\ \left\{0,1,2,3,4\right\} \\ \mathrm{Possible} \mathrm{combinations}=\left(1,3\right),\left(1,4\right),\left(2,4\right),\left(3,4\right)\to \mathrm{Four} \mathrm{ways}. \end{gathered}$$

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