The compound interest on a certain sum at 15% p.a. in 2 years is Rs. 4,837.50, interest compounded-yearly. What is the amount on the same sum at the same rate and for the same time, if the interest is compounded 8-monthly ?
If 'A' is 7 times as efficient as 'B', 'B' takes 32 days to complete the task, then find the number of days required to finish the whole work by 'A' and 'B' working together.
The profit earned by selling an article for Rs. 832 is equal to the loss incurred when the article is sold for Rs. 448. What will be the selling price of the article if it is sold at a 10% loss?