Hi anindiya
Will be reaching there on 17th from pune - chennai train, not sure where i will put up trying for iit guest house
Sample question from prevous year threads,
A trader forms a mixture of cement and sand weighing 40 kgs. In the mixture, cement and sand are in the ratio 4 : 1 in weight terms. Later, when he adds more sand to the mixture, the new ratio becomes 4 : 3. given this, mark all the correct statements.
(A) The second mixture formed is one and a half times heavier than the original mixture.
(B) In order to arrive at the second mixture, the trader had to add a quantity of sand weighing 16 kg.
(C) Had the original mixture been in the ratio of 8 : 3, the weight of the sand in the original mixture would have been 12 kg.
(D) If the trader sells 7 kg of the second mixture formed by him, and adds 11 kg of a new mixture of cement and sand in the ratio of 7 : 4 to the residual, then the new ratio of cement to sand will become 7 : 5