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
More Arithmetic Progression Questions
168, 178, ?, 273, 400, 618, 963
166    156    136   ?     66    16
625, 125, 375, 75, 225, 45, ?
What will come in place of the question mark (?) in the following series?
22, 25, 30, 37, 48, ?
32, 48, 72, 108, ?, 243
What will come in place of the question mark (?) in the following series?
50, 70, 110, 190, 310, ?
8, 15, 44, 175, 874, ?
4, 9, 25, ?, 121, 169
25   25   37.5   ?   328.125   1804.6875
3, 5, 12, 38, 154, ?
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