What's the ellipse time between 3: 40 a. m. and 2 p. m.

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a