THE PROBLEM Barbara, Becky and Beth dressed up as princesses for Halloween. One was Snow White. One was Sleeping Beauty. One was Cinderella. Becky is not Sleeping Beauty and she went trick-or-treating with Snow White. Beth and Sleeping Beauty are sisters. Who is Snow White?
are 5 houses on a street: house A, B, C, D and E. The distance between any two
adjacent houses is 100 feet. There are 2
children living in house A, 3 children living in house B, 4 children living in
house C, 5 children living in house D and 6 children living in house E. If the school bus can only make one stop on
that street, in front of which house the bus should stop so that the sum of
walking distance among all children will be the least?
Nil and Ethan are brothers. They left their home at the same time and drove to the same beach. Nil drove at a speed of 30 miles per hour. Ethan drove at a speed of 20 miles per hour. Nil arrived at the beach 0.5 hour earlier than Ethan. What is the distance between their home and the beach?