Directions: Enter your answer as an integer or a decimal if there is a single answer box OR as a fraction if there are two separate boxes — one for the numerator and one for the denominator.
1. Working together, two water pumps A and B can fill a water tank in 3 hours. Working alone pump A can fill the tank in 4 hours. How long does it take pump B, working alone, to fill the same tank?
hours
4. The square of the sum of two numbers is 289. The product of the two numbers is 66. What is the sum of the squares of the two numbers?
6. The sum of three consecutive odd integers is 249. Find the largest of these numbers.
7. The sum of two numbers is 3.6 and the difference of these numbers is 1.2. Find the largest of these numbers.