10. Find the amount of savings

Panimalar starts her savings with 17 rupees on the first day. On the second day, she added another 18 rupees to her savings. On the third day, she added 19 rupees to her savings. Similarly, every day, she added \(1\) rupee to her savings in addition to the previous day's amount. On the \(40^{\text{th}}\) day, how much will be in her savings?

 

 

Amount in Panimalar's savings on the \(40^{th}\) day \(=\) \(₹\)