Level 3
At the pet shelter, the rabbit population increased by 20% in the second month and then by a further 30% in the next 2 months. If there were 585 rabbits in the end, how many rabbits were there at the pet shelter at first?
Level 3
Belinda made a profit of 50% from the sale of a dress and a profit of 80% from the sale of a shirt. The total profit she made from the two items was $91. She later sold a similar dress at a discount of 20% off the advertised price. Her total profit for the three items then increased to $121.
Level 3
Madam Naz made pies for sale. 45% of the pies were chicken pies and the rest were potato and sardine pies in the ratio 3 : 1. If a customer bought 75% of the chicken pies and all of the sardine pies, what percentage of the potato pies must Madam Naz sell for her to maintain the original percentage of chicken pies at first? Leave your answer in mixed numbers.
Level 3
Tim's and Natalie's monthly allowances were the same at first. Tim's allowance increased by 50% while Natalie's increased by 20%. Given that Tim's allowance would increase by another 20% if he had received $300 more from his father, find the difference in the children's monthly allowances.
Level 3
Leonard had $80 more than his sister. After Leonard spent 25% of his money and his sister spent 75% of her money, they still had $420 left altogether.
How much did Leonard have left in the end?
Express the amount of money his sister had left as a fraction of the amount of money Leonard had in the end. (Give your answer in the simplest form)
