From an average student to a
student in math!
Challenge of the Month
graders' average height in Walnut Creek School for the girls is 54 inches. The
average height for the boys is 55 inches. If the ratio of girls to boys is 7 to
6, what is the average height of all the students?
(6hth grade and up)
2. It was a dark and
stormy night in London in 1905. A traveler named Maxwell lost
his wallet and walked to a hotel. He asked the hotel manager if he could pay
with his gold chain that consists of 7 rings linked together. The hotel manager
looked at his chain and said: "Yes, one gold ring per night. I have a wire
cutter to separate the chain." Maxwell said: “Great, I will stay for 7 nights.”
a) What is the minimum number of
gold rings Maxwell needs to cut to pay for the hotel ONE ring per night for 7
b. If Maxwell can get change (in
rings ) from the hotel each night (i.e. pay 1 ring one night and the next night
pay 2 rings, and get 1 ring back, resulting in 2 rings paid for
2 nights), What is the minimum number of rings he needs to cut?
(4th grade and up)
|Current number of math
problems on this site