# math

Problem
Lejon can finish a job in 6 hours while Romel can do the same job in 3 hours. Working together, how many hours can they finish the job?

1. 👍
2. 👎
3. 👁
1. T = t1*t2/(t1+t2).

1. 👍
2. 👎

1. 👍
2. 👎

## Similar Questions

1. ### Math

Pooja is twice as efficient as Aarti and takes 90 days less than Aarti to complete the job. Find the time in which they can finish the job together.

2. ### math

A father can do a job in a certain number of hours. His son takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does it take the father to do the job alone?

3. ### Algebra

Two workers, if they were working together, could finish a certain job in 12 days. If one of the workers does the first half of the job and then the other one does the second half, the job will take them 25 days. How long would it

4. ### algebra

Nancy can do a typing job in 8 hours. When Carole helps her, they can do the job together in 5 hours. How many hours would it take Carole to do the job alone? i got that carole can fo it in 13 hours and 20 minutes alone is this

1. ### Word Problem

Martha can rake the leaves in her yard in 2 hours. Her brother can do the job in 8 hours. How long will it take them to do the job working together?

2. ### math

1.a collection of 105 coins consists of 1 peso and 5 pesos. if the total value is 205 pesos, find the number of coins of each denomination in the collection. 2.leslie's wallet contains 20 peso bills and 1 peso coins with a total

3. ### SAT Math Question?

Lindsey and Stephen work at a factory. Lindsey can complete one full job in three hours, and Stephen can complete the same job in five hours. If Lindsey and Stephen work together on the job for one hour, then how long, in minutes,

4. ### Algebra

Two plumbers received a job. At first, one of the plumbers worked alone for 1 hour, and then they worked together for the next 4 hours. After this 40% of the job was finished. How long would it take each plumber to do the whole

1. ### math

Michael and Barry can complete a job in 2 hours when working together. If Michael requires 6 hours to do the job alone, how many days does Barry need to do the job alone?

2. ### I swear, nobody knows this answer.

Your realized income from your primary job is \$2,034.24/month. Your fixed expenses are 30% of your primary jobâ€™s realized income. You have a 2nd job that pays \$9.50/hr with deductions of FICA (7.65%), federal tax withholding

3. ### math

You are paid \$8.55/hr at your part-time job. You work 10 hours per week. You are considering working a part-time job for \$6.25/hr, and it pays tips. You will earn an average of \$3.00/hr in tips. If you work the same 10 hours at

4. ### HR

Which of the following approaches would be most appropriate when gathering information for jobs that are repetitive and involve physical activity? A. A job analyst visits the workplace and asks employees to show what the job