find last 11th term from the ap 27,23,19,....,-65
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a= 27
d = - 4
L = - 65
=> a + (n-1)d = - 65
=> 27 + (n-1)(-4) = - 65
=> (n-1)(-4) = - 92
=> n - 1 = 23
=> n = 24
L11 = L - (n-1)d
= - 65 - (11-1)(-4)
= - 65 - (11)* (-4)
= - 65 + 44
= - 21
Last 11th term = - 21
d = - 4
L = - 65
=> a + (n-1)d = - 65
=> 27 + (n-1)(-4) = - 65
=> (n-1)(-4) = - 92
=> n - 1 = 23
=> n = 24
L11 = L - (n-1)d
= - 65 - (11-1)(-4)
= - 65 - (11)* (-4)
= - 65 + 44
= - 21
Last 11th term = - 21
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