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SUBHODIP MANNA

· started a discussion

· 1 Months ago

kindly cheak (Question: 614289.0 )

option a should be the answer.
sum of n cube term is (n(n+1)/2)squaer
so 1+2+3+......+10 cube =55square
so 2+3+4+..................+110=55square-1=3024
now 3024-10 =3014 for n terms

Question:
Find the sum of the following series?

7 + 26 + 63 + 124 + --- 999 ?

Options:
A) 3014
B) 3013
C) 3015
D) 3016
Solution:

Knowledge Expert

· commented

· 1 Months ago

Dear student
Given answer is correct.

Keep learning
Team TR

SUBHODIP MANNA

· commented

· 1 Months ago

sorry my mistake 3015 is the ans.
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