There are two numbers 'x' and 'y'. 40% of 'x' is equal to 60% of 'y'. If the average of 'x' and 'y' is 225, then what is the difference between 'x' and 'y'?
Mohan invested ā¹5,000 in a bank which offered interest at the rate of 10% per year compounded semi-annually. How much amount will he get after 2 years? [Give your answer correct to the nearest integer value.]
If āuā is the object-distance, āvā is the image-distance and āfā is the focal length of a spherical mirror then which of the following is a correct expression for the mirror formula?
