Three successive discounts of 40%, 25% and 20%, respectively, on the marked price of a chair, are equal to a single discount of Rs.960. The marked price (in Rs) of the chair is:
If the operating cost of 6 burners for 6 hours in 8 days is Rs. 450 then find the number of burners if used for 5 hours for 10 day with operating cost of Rs.1250.
What is the difference between the compound interest on a sum of ₹10,000 at 12% p. a. for \(1{1\over4}\) years when the interest is compounded annually and when the interest is compounded 5-monthly? (nearest to a ₹)