The monthly rent of a shop is ₹5,000 in January 2024 and is to increase by ₹250 every month until it reaches ₹8,000, after which it remains unchanged. How many months will pass before the rent first becomes ₹8,000 and what is the total rent payable up to and including that month?
a) 12 months;₹ 82,500
b) 13 months;₹ 86,000
c) 13 months;₹ 84,500
d) 12 months;₹ 78,000