A child spends $100 on 100 toy animals. A cat cost $10.00, A fish costs $3.00, and A bird costs $0.50. She buys atleast one of each, and doesn't buy any other toys.
How many of each toy does the child buy ?
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?