A) 3000 m
B) 3500 m
C) 3800 m
D) 4000 m
Correct Answer: B
Solution :
Since, distance of nearest tree from the well = 10 m Also, each tree is at equal distance of 5 m from the next tree. \[\therefore \] A.P. formed is 10, 15, 20, ........... Here, \[a=10,\text{ }d=5\]and \[n=25\] \[{{S}_{25}}=\frac{25}{2}\left[ 2(10)+\left( 25-1 \right)5 \right]=1750\] Hence, the total distance the gardener will cover in order to water all the trees \[=2\times 1750=3500\text{ }m\]You need to login to perform this action.
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