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If the n^thterm of the AP is 8n + 1, then the 20^th term will be ______(a) 160(b) 120(c) 161(d) 121This question was posed to me in my homework.The doubt is from Nth Term of Arithmetic Progression topic in chapter Arithmetic Progressions of Mathematics – Class 10

Answer»

The CORRECT answer is (C) 161

Best explanation: n^thterm of the AP is 8n + 1

Tn = 8n + 1

T20 = 8(20) + 1

T20 = 161



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