Arithmetic sequence

[Luxuz]

Find an ascending arithmetic sequence in which the sum of the first three terms is 27, and the sum of their squares is 275.

Please help

 

[Deleted member 4993]

Find an ascending arithmetic sequence in which the sum of the first three terms is 27, and the sum of their squares is 275. Please help

An arithmatic sequence would be:

a, a+d, a+2d.........then

a+ a+d+ a+2d = 27 .............. continue

Please show us what you have tried and exactly where you are stuck.

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