Question

There are 25 trees at equal distances of 5m in a line with a water tank,
the distance of the water tank from the nearest tree being 10m. A gardener waters all the tree separately, starting from the water tank
and returning back to the water tank after watering each tree to get
water for the next. Find the total distance covered by the gardener in
order to water all the trees.​

Answer 1

Answer:

3125

5+15+25_______

Sn=1/2n[2a+(n-1)d]

n=25,a=5,d=10

putting the values we get

Sn=3125

so to the total distance covered by the gardener is 3125

Answer 2

pls matk me as a brainlist answer