Problems in which nos are given in ratio and their sum of squares is also given

Finding the no if nos are given in ratios and their LCM or HCF is also given

Problems in which ratio of ages is given

Problems in which sum of no and its reciprocal is given

Problems in which sum and difference of the nos is given

cost related problems in which cost is given in Rs per square metre

Problems in which sum of two no and sum of their reciprocal is given

Problems of finding the ratio of volume/SA if ratio of radius of spheres is given

Problems in which average of consecutive nos is given

cost related problems in which cost is given in Rs per metre

The sum of perimeter of a square and circumference of a circle is given. Prove that the sum of their areas will be minimum when the side of square is equal to the diameter of the circle.