Question
The first odd number is 1, second is 3, third is 5 and
fourth is 7 and so on, then find the 188th odd number?Solution
an = a + (n - 1) × d a = 1 a2 = 3 ⇒ a + d = 3 ⇒ 1 + d = 3 ⇒ d = 2 Now, a = a + 187d = 1 + 187 × 2 = 375
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