the 37th term of an ap is 60 and the 60th term of the ap is 84. then the 14th term of the ap.
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Given : 37th term of an ap is 60 and the 60th term of the ap is 84
To Find : the 14th term of the ap.
Solution:
37th term of an ap is 60
60th term of the ap is 84
aₙ = a + (n-1)d
a = first term
n = number of term
d = common difference
a₃₇ = a + 36d = 60
a₆₀ = a + 59d = 84
=> 23d = 24
=> d = 24/23
a + 36d = 60
=> a + 36(24/23) = 60
=> a = 516/23
14th term of the ap.
a₁₄ = a + 13d
516/23 + 13(24/23)
= 828/23
= 36
14th term of the ap. = 36
or simpler way without difficult calculations
23d = 24
a + 13d = a + 36d - 23d
= 60 - 24
= 36
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