A drawer holds 4 red hats and 4 blue hats. What is the probability of getting exactly three red hats or exactly three blue hats when taking out 4 hats randomly out of the drawer and immediately returning every hat to the drawer before taking out the next?
What percent is X of Y?(1) Y is bigger than 2X by 54.(2) X is smaller than 3Y by 72.
A store bought Q windows at $150 per window and W shelves at $75 per shelve. What is the total price of the windows and the shelves?(1) The Q windows cost $600.(2) Q + W/2 = 12.
If 4XZ + YW = 3 and XW + YZ = 6, what is the value of the expression(2X + Y)(2Z + W)?
What is the perimeter of a rectangle having an area of 60?(1) The length and width of the rectangle are even integers smaller than 25.(2) The length of the rectangle is larger than three times the width.
Roy is now 4 years older than Erik and half of that amount older than Iris. If in 2 years, Roy will be twice as old as Erik, then in 2 years what would be Roy’s age multiplied by Iris’s age?
