Question

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 1

Answer: (C)

$24m$

Each row contains $12$ plants.
There are $11$ gapes between the two corner trees $(11\times 2)$ metres and $1$ metre on each side is left.
Therefore Length $=(22+2)m=24m$.