Question

, hello user

25 trees are planted in a straight line at intervals of 5 metres . to water them the garden must bring water for each tree separately from a well 10 meters from the first tree in line with the trees . how far he will have to cover in order to water all the trees Beginning with the first if he starts from the well.?

answer only above 10 class.

Answer 1

distance cover to water first tree = 10m

,,,. ,,,,,. ,, 2nd tree = 10 +15 = 25m


,,,,. ,,,,,. ,, 3rd tree = 15 + 20 = 35 m

,,,,. ,,. ,,,,. ,,. ,,, 4 th tree= 20 + 25= 45m



so,.

total distance covered to water all the trees.

10+25+35+45+........ to 25 terms.

10+(25+35+45..... to 24 terms)

$10 + \frac{24}{2} (2 \times 25 \times + (24 - 1) \times 10) \\ \\ 10 + 12 \times 280 = 10 + 3360 \\ \\ = 3370m$

be brainly

Answer 2

Hey mate ^_^

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Answer:
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Distance to and fro from the well to the 1st tree  =   (10  )* 2 m  = 20 m
   
The 2nd tree = (10+1* 5) * 2 m
                    
The nth tree = (10 + (n-1)*5) * 2 m 
                 
The 25th tree = (10 + 24 * 5) * 2 m = 500m

The total distance = sum = (20m + 500m)/2 * 25 = 6,500 m

Final answer: 6,500 m

#Be Brainly❤️