Answer this question:Tommy is looking at his change collection. He has 10 more dimes than pennies. He has twice as many nickels as dimes. He has 4 quarters. He has 10 times as many pennies as quarters. How many nickels does he have?
Tommy has 40 pennies because 10 x 4 = 40. Tommy has 50 dimes because 40 + 10 = 50. Tommy has 100 nickels because 50 x 2 = 100.
The answer is 100.

Answer this question:Bert, Ernie, and Peggy collect stamps. Bert has four times as many stamps as Ernie, but Ernie has three times as many stamps as Peggy. If Peggy currently has 75 stamps in her collection, how many stamps does she need to add to her collection to have a collection as large as Bert's collection?
Ernie has three times as many stamps as Peggy, or 3 * 75 = 225 stamps. Bert has 4 times as many stamps as Ernie, or 4 * 225 = 900 stamps. Thus, Peggy would need 900 - 75 = 825 more stamps to have a collection as large as Bert's.
The answer is 825.

Answer this question:Cassandra bought four dozen Granny Smith apples and used them to make four apple pies. She cut each pie into 6 large pieces. How many apples are in each slice of pie?
Four dozen apples contain 4 * 12 = 48 apples. Four pies, each cut into 6 pieces, contain 4 * 6 = 24 pieces. Thus, there are 48 / 24 = 2 apples in every slice of Cassandra's apple pie.
The answer is 2.

Answer this question:Police officer A patrols 36 streets in 4 hours. His colleague, officer B, patrols 55 streets in 5 hours. How many streets will both officers patrol in one hour?
Officer A patrols 36 streets / 4 hours = 9 streets / hour. Officer B patrols 55 streets / 5 hours = 11 streets / hour. Together officer A and B patrol 9 streets / hour + 11 streets / hour = 20 streets / hour.
The answer is 20.