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What is the remainder when 100^3 + 101^3 + 102^3 + 103^3 + … + 999^3 is divided by 7?

I solved it by calculating remainder of (sum of all cubes upto 999) - remainder of (sum of all cubes upto 99). I get 5 as answer. But the correct ans is 0.

how to do binomial expansion ?

How to remember new words

how do i solve passages? everytime i solve quiestion i got it incorret. what is the approaches to solve RC?

https://cracku.in/cat/history/2047920?src=test

how do i solve para jumble

How to approach Critical reasoning

how i improve verbal ??

How to solve algebra sums

I'm very poor at geometry, please suggest the best approach for prepration