Question : Directions: In the following question, select the missing number of the given series.
1, 3, 9, 27, 81, ?
Option 1: 283
Option 2: 343
Option 3: 313
Option 4: 243
Correct Answer: 243
Solution :
Given:
1, 3, 9, 27, 81, ?
Multiply each number by 3, to get the next number in the series –
1 × 3 = 3; 3 × 3 = 9; 9 × 3 = 27; 27 × 3 = 81; 81 × 3 = 243
So, the missing number is 243. Hence, the fourth option is correct.
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