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?	Choose the correct answer.
A) 12	B) 27	C) 24	D) 29	E) 11
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)= 
<gadget id="calculator">(22 + 2)</gadget>
<output>24</output>
24 m.   Answer: 24
<result>C</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. The length of the garden is?