easy · GMAT Quant
In a laboratory sequence, each term a_n is defined by a_n = a_n-1 + d for n > 1.
If a_1 + a_5 = 30 and a_2 + a_4 = 30, what is the value of a_3 + 10?
- 25
- 40
- 20
- 15
- 30
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