If 1 2 + 2 2 + 3 2 + ....... + 14 2 = 1015, then 3 2 + 6 2 + 9 2 + ...... + 42 2 is equal to

RRB NTPC CBT I 29 Dec 2020 Shift 1 Paper

Question : 46 of 100

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If 1² + 2² + 3² + ....... + 14² = 1015, then 3² + 6² + 9² + ...... + 42² is equal to

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