Average of cubes of first 7 natural numbers is?

Explanation

The average of the cubes of the first 7 natural numbers is 112.

First 7 natural numbers:
1, 2, 3, 4, 5, 6, 7

Cubes:

1^3=1,2^3=8,3^3=27,4^3=64,5^3=125,6^3=216,7^3=343

Sum:

$$1+8+27+64+125+216+343=784$$

Average:

784​/7=112

$$Last\; updated\; question\; by\; NA\; on\; 07\; May\; 2026$$

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