CSAT 2022 | DDSQ Dec 5 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways

From January 1, 2021, the price of petrol (in Rupees per litre) on m^{th} day of the year is 80 + 0.1m, where m = 1, 2, 3, ..., 100 and thereafter remains constant. On the other hand, the price of diesel (in Rupees per litre) on n^{th} day of 2021 is 69 + 0.15n for any n. On which date in the year 2021 are the prices of these two fuels equal? (2021)

(a) 21^{st} May
(b) 20^{st} May
(c) 19^{st} May
(d) 18^{st} May