20% of the students in a class failed in an examination. Out of the students who failed, 75% were males. Male students who failed constitute 90% of the economically poor students in the class. What is the ratio of the number of economically poor students to the number of students in the class?
Correct Answer : D
Latika borrowed Rs 5000 on a simple interest rate of 11% per annum for two years. However, Tanvi borrowed the same amount for the same period on a compound interest rate of 10% per annum. Who returned more and by how much amount
In an organisation average salary of employee is Rs 12,000. If the average salary of 15 employees is increased by 15% and the average salary of remaining 10 employees is increased by 10%, what is the overall percentage increase in average salary of all the 25 employees together
A container has 10 litres of a 10% solution of sulphuric acid. How much more acid must be added to obtain a 25% solution