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Write Variable Rational Expressions :Word Problem

Arah can finish a task in 3 hours while can finish the same task in 5 hours. How much will it take them if both of them work together to finish the same task? 

The sum of a whole number and its reciprocal is 3/2. What is the number?

The difference of a whole number and its reciprocal is 1/2. What is the number?

The sum of a whole number and its reciprocal is 26/5. What is the number?

A number added to four times its reciprocal is equal to the sum of 3/2 and the quotient of two more than three times the same number and four. What is the number?

When five times the square of a certain integer is divided by four more than three times the same number, the result is -10. What are the numbers?

A sailboat traveled for 222 miles when it moved along with the current, while it traveled 66 miles when it moved against the current in the same amount of time. Consider the speed of the sailboat as 24 mph. What is the speed of the current?

A runner runs 9 mph faster than the other runner. When the faster runner traveled a distance of 93 miles, the other one went 66 miles. What is the speed of the slower runner?

The ratio of ten more than three times a number to the square of the same number number is equal to 1. What are the numbers?

A number added twice its reciprocal is 11/3. What is the number?