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Given that \(1^2+2^2+3^2+\cdots +10^2=385,\) what is the value of \(3^2+6^2+9^2+\cdots +30^2?\)
A. 1,155
B. 1,540
C. 1,925
D. 2,310
E. 3,465
Answer: E
Source: Official Guide
A. 1,155
B. 1,540
C. 1,925
D. 2,310
E. 3,465
Answer: E
Source: Official Guide
