Question

Carpenter A takes 15 minutes to fit the parts of a chair while Carpenter B takes 3 minutes
more than A to do the same work. Working together, how long will it take for them to fit
the parts for 22 chairs?

please answer fast and step by step. I'll mark as brainliest. ​

Answer 1

Step-by-step explanation:

Carpenter A takes minutes - 15

Carpenter B takes minutes - 15+3=18

(15+18)×(22÷2)

33×11=363 minutes

1 hour = 60 minutes

60(363)10 =10 hour 3 minutes

-360

3

Please mark it as blainliest

Answer 2

In 180 minutes (3 hours) they can do together the work.

Step-by-step explanation:

Carpenter A takes time to fit the parts of a chair = 15 minutes

Carpenter A takes time to fit the parts of 22 chair = 15 × 22

                                                                                  = 330 min

Carpenter B takes time to fit the parts of a chair = 18 minutes

Carpenter B takes time to fit the parts of 22 chair = 18 × 22

                                                                                  = 396 min

Carpenter A can do the work in 1 min = $\frac{1}{330}$

Carpenter B can do the same work in 1 min = $\frac{1}{396}$

Both together can do the same work in 1 min = $\frac{1}{330}+ \frac{1}{396}$

                                                                           = $\frac{6+5}{1980}$

                                                                           = $\frac{11}{1980}$

                                                                           = $\frac{1}{180}$

60 min = 1 hour

180 min = 180/60 = 3 hours

In 180 minutes or 3 hours they can do together the work.

Learn more work time problem : https://brainly.in/question/14798798