It takes tom 3 minutes to wash a car, and it takes jerry 6.7 minutes to wash the same car, how long does it take for them to wash the car together?

it takes them 2.13 minutes to wash the car together.

Step-by-step explanation:

It takes Tom 3 minutes to wash a car. This means that the rate at which Tom washes the car per minute is 1/3

It takes Jerry 6.7 minutes to wash the same car. This means that the rate at which Jerry washes the car per minute is 1/6.7

If they work together, they would work simultaneously and their individual rates are additive. This means that their combined working rate would be

1/3 + 1/6.7 = 9.7/20.1

Assuming it takes t hours for both of them to clean the room working together, the working rate per hour would be 1/t. Therefore,

9.7/20.1 = 1/t

t = 20.7/9.7

t = 2.13 minutes

probably .5

i can on others if necessary.

what? that isnt a question

step-by-step explanation: