The sum of a mother, her baby and her dog’s weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?
9 packet of rice of the same weight weigh 2.7 kg. 1 bowl of rice weighs 700 g. How much heavier is 1 bowl of rice than 1 packet of rice?
