cube related question question

[suraj]

(16cube+17cube+18cube+19cube)/70.
sir i want to know is their any way to find this answer without using the formulas.
because i don't want to use formula every where.i think every thing is logical.

if the denominator would be less than numerator than i could do by your method that u'd explained in ur video.but i dun knw wat to do if the denominator is more than numerator.

[ravihanda]

I think the question would be of remainder and the remainder is 0.

a^n + b^n + c^n + d^n .... is divisible by (a+b+c+d+...) if a,b,c,d... are in AP and n is odd.

[grimreaper]

(16cube+17cube+18cube+19cube)/70.
sir i want to know is their any way to find this answer without using the formulas.
because i don't want to use formula every where.i think every thing is logical.

if the denominator would be less than numerator than i could do by your method that u'd explained in ur video.but i dun knw wat to do if the denominator is more than numerator.

????? if the denominator is more than the numerator.....answer is directly the numerator........... remainder is asked......and whts easier than the Q where they already give a DR...more than NR