Inside a rectangular garden which is 20 m long and
15 m wide, a margin of 2 m width has been left all
around for planting marigold plant and grass has been
planted in the rest of the area. If 4 marigold plants
can be planted in 2 sq. m, then how many marigold
plants can be planted in the garden?
A122
B248
C250
D240