1.  There are seventysix mice in the barn. If the ratio of brown mice to gray mice is 1:3how many gray mice are there?

 2.  The local election is over and a new mayor has been elected to lead Big Town. The new mayor received three votes for every vote received by her opponent. The new mayor received3,213votes. How many votes did her opponent receive?


3.  If the probability that a chicken will cross the road isonefourth, then what is the ratio that the chicken will cross the road to the chicken will not cross the road? _______ to _______

 4.  *Questa è una scheda preparata. Utilizza il link nella parte superiore della pagina per ottenere una pagina stampabile. 

5.  Christopher and Caleb have different math teachers at school. Christopher said to his friend Caleb, “I have more of my homework done than you. I did seventeen out of thirtythree problems so far.” Caleb disagreed saying, “No way! I already did _____ out of fortyfive!” Assuming Caleb was correct, at least how many problems must he have done to have completed a greater percentage of his assigned homework?

 6.  A scientist counted birds in a cornfield. He counted fourteen crows, fifteen jays and seven hawks. What was the ratio of jays to hawks?

