Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
71, 74, 72, 75, 73, 76, ?
Option 1: 75
Option 2: 74
Option 3: 77
Option 4: 78
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Correct Answer: 74
Solution :
Given:
71, 74, 72, 75, 73, 76, ?
In the given series, add 3 and subtract 2 alternatively from the previous number to get the next number.
71 + 3 = 74; 74 – 2 = 72; 72 + 3 = 75; 75 – 2 = 73; 73 + 3 = 76; 76 – 2 = 74
So, 74 is the missing number. Hence, the second option is correct.
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