2.
A set of football matches is to be organized in a "round-robin"
fashion, i.e., every participating team plays a match against every
other team once and only once. If 105 matches are totally played,
how many teams participated?
Answer
3.
A large water tank has two inlet pipes (a large one and a small
one) and one outlet pipe. It takes 1 hours to fill the tank with
the large inlet pipe. On the other hand, it takes 5 hours to fill
the tank with the small inlet pipe. The outlet pipe allows the full
tank to be emptied in 6 hours. What fraction of the tank (initially
empty) will be filled in 0.97 hours if all three pipes are in operation?
Answer
4.
Bodo weighs 140 pounds more than his sister, Michelle. Their combined
weight is 160 pounds. How many pounds does Bodo weigh?
Answer
5.
Consider 16 lines drawn at a tangent to an ellipse. The lines break
up the plane into several regions, some bounded (i.e., enclosed)
and others unbounded. How many unbounded regions are there?
Answer
6.
A painting job can be completed by 8 painters in 30 days. If 16
more painters join the team 9 days after starting work on the job,
then how many more days are required to complete the job?
Answer
7.
Teacher: You appeared for 6 quizzes, and your average marks in them
were 81. Student: How did I fare in English? Teacher: Well, your
average in English Language and English Literature is 69. Student:
So, how was my performance in the remaining subjects? Teacher: I
am sure you can figure that out for yourself. Can you help the student
find his average marks in the remaining subjects?
Answer
8.
A snail creeps 6 ft up a wall during the daytime. After all the
labor it does throughout the day, it stops to rest a while... but
falls asleep!! The next morning it wakes up and discovers that it
has slipped down 4 ft while sleeping.
If this happens every day, how many days will the
snail take to reach the top of a wall 18 ft in height?
Answer
Last
Week
