What is the weight of water contained in a conical vessel 21 cm deep and 16 cm in diameter? (a) 1.256 kg    (b) 1.408 kg    (c) 2.480 kg    (d) 3.875 kg

2kg 5gm is equal to 2.5kg (b) 2.05kg (c) 2.005kg (d) 2.6kg

2kg 5gm is equal to (a) 2.5kg (b) 2.05kg (c) 2.005kg (d) 2.6kg

The average weight of 21 boys was recorded as 64 kg. If the weight of the teacher was added, the average increased by 1 kg. What was the teacher’s weight? (a) 86 kg (b) 64 kg (c) 72 kg (d) 84 kg

The average weight of A , B and C is 40 kgs. Weight of C is 24 kgs more than A s weight and 3 kgs less than B s weight. What will be the average weight of A , B , C and D . If D weights 15 kgs less than C ? (a) 42 kgs (b) 40 kgs (c) 36 kgs (d) 38 kgs

The average weight of A , B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is: (a) 17 kg (b) 20 kg (c) 26 kg (d) 31 kg

The average weight of 16 boys in a class is 50.25 kgs and that of the remaining 8 boys is 45.15 kgs. Find the average weight of all the boys in the class. (a) 47.55 kgs (b) 48 kgs (c) 48.55 kgs (d) 49.25 kgs

What will be the quantity of water in the body of a person weighing 50 kg? (a) 20 kg (b) 35 kg (c) 41 kg (d) 42.5 kg

The average weight of three boys A , B and C is 54 1/3 kg, while the average weight of three boys B , D and E is 53 kg. What is the average weight of A , B , C , D and E ? (a) 52.4 kg (b) 53.2 kg (c) 53.8 kg (d) Data inadequate (e) None of these

Water is flowing into a right circular conical vessel, 45 cm deep and 27 cm in diameter at the rate of 11 cm^(3) /min. How fast is the water-level rising when the water is 30 cm deep?

What is the weight of a metal of 1 cu cm in gram, when the weight of 5 cu cm of the same metal is 20.3 kg?