If the compound interest on a sum for 2 years at 12(1/2)% per annum is Rs. 510, the simple interest on the same sum at the same rate for the same period of time is
Correct Answer : D
A’s marks in Biology are 20 less than 25% of the total marks obtained by him in Biology, Maths and Drawing. If his marks in Drawing be 50, what are his marks in Maths?
The price of a table is Rs. 400 more than of a chair. If 6 tables and 6 chairs together cost Rs. 4800, by what percent is the price of the chair less than that of the table?
In a city, 40% of the people are illiterate and 60% are poor. Among the rich, 10% are illiterate. What percentage of the poor population is illiterate?