𝐏𝐫𝐨𝐛𝐥𝐞𝐦 𝐬𝐨𝐥𝐯𝐢𝐧𝐠 𝐔𝐬𝐢𝐧𝐠 𝐀𝐫𝐢𝐭𝐡𝐦𝐞𝐭𝐢𝐜 𝐒𝐞𝐪𝐮𝐞𝐧𝐜𝐞𝐬

Using `u_{n}=u_{1}+\left(n-1\right)d` formula to solve some Arithmetic Sequence Problems.

By @SatvinderEdtech Singh