The milk and water in two buckets P and Q are in the ratio 5 : 3 and 1 : 4, respectively. In what ratio are the liquids in both the buckets mixed to obtain a new mixture in a third bucket R containing 50% milk and 50% water?
A hollow ball is to be made with outer radius 7 units and inner radius 3.5 units. How much material (in cubic units) will be required to make the ball ?
Kumar took a loan from a bank at the rate of 9.5% per annum at simple interest. After 6 years he had to pay ₹3,705 as interest only for the period. The principal amount borrowed by him was:
If the radius of a cylinder is decreased by 25% and the height is increased by 25% to form a new cylinder, what is the percentage decrease in new volume (rounded off to two digits after the decimal)?
The bar-graph shows the number of students from all the five different branches of an engineering college.
Study the given bar-graph and answer the question that follows.
What is the total percentage of females in the college?
