The value of an article depreciates every year at the rate of 10% of its value. If the present value of the article is  Rs 729, then its worth 3 years ago was

If A’s income is 40 % less than that of B, how much percent B's income is more than that of A? 

The difference of two numbers is 20 % of the larger number. If the smaller number is 20, the larger number is:

In a college the number of students studying Arts, Commerce and Science are in the ratio of 3:5:8 respectively. If the number of students studying Arts, Commerce and Science is increased by 20%, 40%, and 25% respectively, what will be the new ratio of students in Arts, Commerce and Science respectively?

In a test, minimum passing percentage for girls and boys is 30% and 45% respectively. A boy scored 280 marks and failed by 80 marks. How many more marks did a girl require to pass in the test if she scored 108 marks?

Twenty five percent of Pranab’s annual salary is equal to eighty percent of Surya’s annual salary. Surya’s monthly salary is forty percent of Dheeru’ monthly salary. If Dhreeu’s annual salary is Rs 6 lacs, what is Pranab’s monthly salary? (At some places annual income and in some place monthly income are given)

On a certain date, Pakistan has a success rate of 60% against India in all the ODIs played between the two countries. The lost the next 30 ODIs.  In a row to India and their success rate comes down to 30%. The total number of ODIs played between the two countries is