The height of my friend Priya is 160 cm and the height of her mother is 170 cm. Again Priya's weight is 40 kg and her mother's weight is 42.5 kg. Let's find if their weights are in proportional to their heights.

Calculate the BMI of a 20 year old boy whose body weight is 60 kg and height is 1.7 metres.

There is a solid iron - pillar in front of Anil's house , the lower part of which is of type of right circular cylinder and the upper part is of type of a right circular cone . The radii of their diameter of bases is 20 cm . If the height of the cylindricalpart be 2.8 metres and that of the conical part be 42 cm and if the weight of 1 cc iron be 7.5 gm , then what will be the weight of the pilar ?

The weight of a wooden box made of wooden planks with the thickness of 5 cm along with its covering is 115·5 kg. But the weight of the box filled with rice is 880·5 kg. The length-and breadth of inner side of the box are 12 dcm and 8·5 dcm respectively and the weight of 1 cubic dcm rice is 1 ·5 kg. Determine the inner height of the box. Also determine the total expenditure to colour the outside of the box, if the rate is ₹ 1 ·50 per sq-dcm.

A part of an iron -pillar is a right circular cylindrical shaped and the rest part is a right circular conical shaped . The radius of each part of the pillar is 6 cm and the heights of the first part , i.e , of the cylindrical part and the second part , i.e o fthe conical part are 140 cm and 35 cm respectively . If the weight of 1 cc iron be 5.2 gm , then what will be the weight of the total pillar ?

The mean and s.d. of height readings of a group of employees of a firm are found to be 172 cm and 18 cm. While the same measure of their weight readings are 65 kg and 9 kg. Compare the variability of the height readings with that of the weight readings.

By melting a solid iron sphere, 32 conical paper weights of equal volume is formed. If the height of Each paper weight is 4cm and the diameter of base is 1 cm, find the diameter of the sphere.

The inner length , breadth and height of a tea - box are 7.5 dcm, 6 dcm and 5.4 dcm respectively, The weight of the box fulled with tea is 52 kg 350 gms, but the weight of the empty box is 3.75 kg . Then what will be the weight of tea of volume 1 cu- dcm. ?