Level 2
Natalie, Emily, Henry and Aaron have an average of $50. The total amount Natalie and Emily have is $36 more than the total amount Henry and Aaron have. Natalie has $35. How much does Emily have?
Level 2
The average height of some children is 160 cm. There is an equal number of boys and girls. The average height of the boys is 170 cm. Find the average height of the girls. Give your answer in cm.
Level 2
Ethan buys a jumpsuit, a blouse and a dress. The average cost of these items is $82. The cost of the dress is four times the total cost of the jumpsuit and the blouse. If the jumpsuit costs $14, find the difference in cost between the blouse and the dress.