In April 2019, Dinesh purchased a new car for Rs. 7,00,000 and sold it in April 2022 at its depreciated cost. If the rate of depreciation in the first year is 20%, 15% in the second year and 10% every year thereafter, what amount of money will Dinesh get as the selling price?

Mandar bought a calculator and sold it to Ketan at a profit of 5%. Ketan sold it to Tushar at a loss of 25%. If Tushar paid Rs. 3780, then the cost price (in Rs. ) of the calculator Mandar bought is

Kanchan bought a ring and sold it to Mohan at a profit of 5%. Mohan sold it to Pramod at a loss of 25%. If Pramod paid Rs. 3150, then the cost price (in Rs. ) of the ring Kanchan bought is

Ketan bought a shirt and sold it to Mahesh at a profit of 5%. Mahesh sold it to David at a loss of 24%. If David paid Rs. 3990, then the cost price (in Rs. ) of the shirt Ketan bought is

​The cost price of article B is Rs. 200 more than that of article A. Article A sold at 20% profit and article B sold at 20% loss. If total selling price of A and B together is Rs. 760, then find the cost price of the article A (in Rs.)?