It takes 3 hours for Susie to clean a rectangular
garden. Peter can clean the same garden in 1.5
hours. How long will it take Peter and Susie to
clean the garden together?
Answer:
1 hr
Step-by-step explanation:
since he works double she is ,
so
Peter needs to work 2/3
and Susie needs to work 1/3
Peter :
1.5 hr——->1 (garden)
X hr ——–>2/3(garder)
we make criss cross then
1X=1.5×2/3
X=1hr
and to be sure that it is correct we make criss cross method also for Susie…
