For an A. P. a=10, d=5 then what is the value of t3
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A13 = a + ( 13 - 1) d
A13 = 10 + 12× 5
A13 = 10 + 60 = 70
A13 or t13 = 70
A13 = 10 + 12× 5
A13 = 10 + 60 = 70
A13 or t13 = 70
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