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. What is the length of the garden?  Choose the correct answer
A) 30 m  B) 28 m  C) 26 m  D) 24 m  E) 22 m
Explanation :   Between the 12 mango trees, there are 11 gaps and each gap has 2 meter length   Also, 1 meter is left from all sides of the boundary of the garden.   Hence, length of the garden = (11 × 2) + 1 + 1 = 24 meter   Answer :24 m
<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 one metre is left from all sides of the boundary of the garden. What is the length of the garden?