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A solid cone of height 25 cm and base diameter 25 cm floats in water with its vertex downwards such that 20 cm of its axis is immersed. The additional weight that must be placed at the centre of the base such that the cone now is completely immersed in water is-
(a) 1 kg
(b) 2 kg
(c) 3 kg
(d) 4 kg
Updated Thu, 20 Dec 2018 10:02 am
Which of the following statement is not correct with respect to malaria?