The sum of any two numbers and the sum of those same numbers interchanged remains the same.use variable
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Answered by
0
Step-by-step explanation:
Average is the sum of the data values divided by the total number of data values.
The two digit numbers which remain same when the digits interchange their position are 11,22,33,44,55,66,77,88,99
Therefore, average =
9
11+22+33+44+55+66+77+88+99
=
9
495
=55
Answered by
0
Step-by-step explanation:
therefore= 9
11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99 is equal to 9495 is equal to sin 55
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