Question

what is the average of first 25 multiple of 11?​

Answer 1

Answer:

143

Step-by-step explanation:

For the Average : 11*(25+1)/2 = 11*26/2 = 11*13 = 143.

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Answer 2

11+22+33+44+55+66+77+88+99+110+121+132+143+154+165+176+187+198+209+220+231+242+253+264+275 =3575....

average = 3575/25

= 143.....