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 three metres is left from all sides of the boundary of the garden. What is the length of the garden? Pick:
A) 22
B) 24
C) 26
D) 28
E) 30
Between the 12 mango trees, there are 11 gaps and each gap has 2 meter length   Also, 3 meter is left from all sides of the boundary of the garden.   Hence, length of the garden = (11 Ã— 2) + 3 + 3 = 28 meter   Answer is 28.
<result>D</result>
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 three metres is left from all sides of the boundary of the garden. What is the length of the garden?