1) In a garden, there are 10 rows and 12 columns of mango trees. The distance between the two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden. The length of the garden is : A) 20m B) 22m C) 24m D) 26m Answer: Option CExplanation:Each row contains 12 plants.There are 11 gapes between the two corner trees (11 x 2) metres and 1 metre on each side is left.Therefore Length = (22 + 2) m = 24 m.
