Question

find the sum of the cubes of the first 15 natural numbers

Answer 1

Answer:

The required sum is given as,

1³+2³+3²+4³+5³+6³+7³+8³+9³+10³+11³+

12³+13³+14³+15³

=1+8+27+64+125+216+343+512++729+

1000+1331+1728+2197+2744+3375

= 14400

Answer 2

Step-by-step explanation:

Mean of cubes of the first 15 natural numbers can be calculated by dividing the sum of first 15 natural numbers from 15. Therefore, the mean of cubes of first 15 natural numbers is 960 and option B is the correct solution for this question.