Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
325, 271, 226, ?, 163, 145, 136
Option 1: 190
Option 2: 180
Option 3: 186
Option 4: 196
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Correct Answer: 190
Solution :
Given:
325, 271, 226, ?, 163, 145, 136
In the above-given series, subtract the multiples of 9 in decreasing order from the previous numbers to obtain the next numbers.
325 – 54 = 271; 271 – 45 = 226; 226 – 36 = 190; 190 – 27 = 163; 163 – 18 = 145; 145 – 9 = 136
So, 190 is the missing number of the series. Hence, the first option is correct.
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