Question

Solve this and I will mark you as BRAINLIEST​

Answer 1

Answer:

246 is the answer according to my calculations

Answer 2

Answer:

The simplest way to figure this is out, is to group the “1, 2, 3, 4”s in groups of, well, four. We know that 99 is not a multiple of 4, but 100 is. So we now know that these of “1, 2, 3 4”s will end at the 25 th place, and the 100th place must be -1.

Great. So, we have 25 groups of “1, 2, 3, 4”, plus a “-1” leftover. There are 25 groups because there are 100 digits in the series divided up into groups of 4 each. 100 ÷ 4 = 25, so there are 25 groups.

Using algebra, we can visualize this series of numbers as “25 groups of ‘1 + 2 + 3 + 4’, plus -1”, or 25 ⨉ (1 + 2 + 3 + 4) - 1. This is easy to simplify:

25 ⨉ (1 + 2 + 3+ 4) - 1

= 25 ⨉ (10) - 1

= 250 - 1

= 249

So, the sum of digits “1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3,” repeating in such a fashion until there are 99 terms altogether, is 249.

hope you would have got the answer mate....