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Complete the missing number in the given series. 5, 20, 76, (—), 448

Correct Answer: 225

Explanation:

The series follows the following pattern


5 X 5 – 5 = 20


20 X 4 – 4 = 76


76 X 3 – 3 = 225


225 X 2 – 2 = 448


Hence, the term 225 denoted by (d) completes the series


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