In an AP 3,8,15......253 find 20th term from last
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Step-by-step explanation:
to find the 20th term from the end, take a = 253 and d = -d
a = 253, d = 8-3 = 5 => -d = -5
a20 from the end = a + (n-1)d
=> 253 + 19 × -5
=> 253 - 95
=> 158
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kindly re-check the question 3,8,15......253 is no in AP
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