In a rectangular coordinate system, what is the area of a rectangle whose vertices have the coordinates (-4, 1), (1, 1), (1, -3) and (-4, -3)?
Answer(s): B
First draw the x and y axes, then plot the points and connect them, right away you can see that the base is 5 units and the height is 4 units. The area of the rectangle is 20.
In a rectangular coordinate system, what is the area of a rhombus whose vertices have the coordinates (0, 3.5), (8, 0), (0, -3.5), (-8, 0)?
Answer(s): A
First draw the x and y axes, then plot the points and connect them.The area of a rhombus is simply the product of its diagonals divided by 2. The area is = 16 x 7 = 112/2=56.
A GMAT class has a ratio of girls to boys of 1.5 to 3. If the class has a total of 36 students, how many more girls are there than boys?
Answer(s): C
This is a standard ratio problem. 36 / (1.5 + 3) = 8. The number of boys is 8 x 3 = 24.The number of girls is 8 x 1.5 = 12.The difference between the numbers is 12.
A Math-club class has a ratio of girls to boys of 1.5 to 4.5. Out of all the boys 16.66% are left-handed, how many left-handed boys are there in the class assuming that there are 24 students all together.
Answer(s): E
This is a standard ratio problem. 24 / (1.5 + 4.5) = 4. The number of boys is 4 x 4.5 = 18.The number of girls is 4 x 1.5 = 6. 16.66% out of 18 are 3 boys.
X is an even number, which of the following is odd?
The easiest way is to try out a number, lets say X=2.You can see that B is 9, and that is always an odd number.
Post your Comments and Discuss Test Prep GMAT Test exam prep with other Community members:
Our website is free, but we have to fight against AI bots and content theft. We're sorry for the inconvenience caused by these security measures. You can access the rest of the GMAT Test content, but please register or login to continue.