Question : Directions: What should come in place of the question mark (?) in the given series?
36, 108, 54, ?, 81, 243
Option 1: 82
Option 2: 88
Option 3: 162
Option 4: 170
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Correct Answer: 162
Solution :
Given:
36, 108, 54, ?, 81, 243
Multiply the numbers by 3 and divide the numbers by 2 alternatively to get the next number of the series –
36 × 3 = 108; 108 ÷ 2 = 54; 54 × 3 = 162; 162 ÷ 2 = 81; 81 × 3 = 243
So, 162 is the missing number is 162. Hence, the third option is correct.
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