Question

Rekha can reap a field and 20 days and Pawan can reap the same field in 30 days how long will they take to reap it together​

Answer 1

Answer:

They will take 12 days.

Step-by-step explanation:

  If Rekha takes 20 days to finish the job, that means that she finishes one twentieth of the work in one day. ($\frac{1}{20}$)

  If Pawan takes 30 days to finish the job, that means that he finishes one thirtieth of the work in one day. ($\frac{1}{30}$)

  Together, they will do one twelfth of the job in one day as shown in the following calculation:

         $\frac{1}{20}$ + $\frac{1}{30}$

         3  +  2 =  5    =   1

            60       60      12

  If together they do one twelfth of the work in one day, then that means that in twelve days they will reap the field.

                                                                                              Hope this helps! :)

                                                                                                     - Abby <3