In a school tree plantation on Independence Day was arranged. every student from I standard will plant 2 trees, II standard students will plant 4 trees each, III standard students will plant 8 trees each etc. If there are 5 standard, how many trees are planted by the student of that school ?
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ATQ, AP would be 2,4,8.......
a=2 d=2 n=5
Sn = n/2 (2a+(n-1)d)
Sn = 5/2 (2*2+4*2)
Sn = 5/2 *12
Sn = 30
Therefore 30 trees would be planted by the students of school
a=2 d=2 n=5
Sn = n/2 (2a+(n-1)d)
Sn = 5/2 (2*2+4*2)
Sn = 5/2 *12
Sn = 30
Therefore 30 trees would be planted by the students of school
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