Algebra
Geometry
Probablity
Wild cards/Others
100
The three numbers 2, x, and 10 have an average of x. What is the value of x?
x=6
100
(x + 1)(x - 1) = x2 - 1
100
There are 3 red balls and 5 blue balls in a bag, what is the probability of getting a red ball.
3/8
100
I am an odd number. Take away one letter and I become even. What number am I?
Seven
200
A compact disc originally sells for $10.00. If the price of the compact disc is increased by 40% and this new price is later decreased by 30%, what is the final price
9.8
200
a sector of a circle has central angle 120◦. The area of the whole circle is 9π. What is the area of this sector?
3pi
200
A die is rolled, find the probability that an even number is obtained.
1/2
200
Your math test scores are 68, 78, 90, and 91. What is the lowest you can earn on the next test and still achieve an average of at least 85?
98
300
On Monday, Hank drove to work at an average speed of 70 km/h and arrived 1 minute late. On Tuesday, he left at the same time and took the same route. This time he drove at an average speed of 75 km/h and arrived 1 minute early. How long is his route to work?
35km
300
Square PQRS has an area of 900. M is the midpoint of PQ and N is the midpoint of PS. What is the area of triangle PMN?
7.52
300
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
= 9/20
300
Sally is 54 years old and her mother is 80, how many years ago was Sally’s mother three times her age?
41 years ago, when Sally was 13 and her mother was 39