Mrs. Thapa can do 1/5 part of a work in one day and Mrs Gupta can do 1/6 part of a work in 1 days then how much work is left to finished

THE WORK THAT IS LEFT TO FINISHED IS 11

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source