(4) 5. What is the remainder when 723 + 724 + 725 + 726 is divided by 16? ​

Dear Student

723 on dividing by 16 will give 3 as remainder.
so 724 will give 4, 725 will give 5,726 will give 6.
adding up all these we will get 18.
which itself is more than 16 by 2
so the final remainder would be 2.

Thanks