1.

If 13 + 23 + ….. + 103 = 3025 then 4 + 32 + 108 + … + 4000 is equal to (1) 1200 (2) 12100 (3) 12200 (4) 12400

Answer»

Correct answer: (2) 12100

take 4 common from the question 

we get 

4 [ 13 +23+33 +......... + 103

now from given data 

13+23+33+.........+10= 3025

Now , Ans = 4 × 3025 = 12100

Correct option is (2) 12100



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