In following question,a number series is given with one term missing. Choose the correct alternative
2 , 5 , 9 , 19 , 37 , x
A
76
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B
75
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C
74
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D
72
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Solution
The correct option is A 75 The second number is one more than twice the first ; third number is one twice second ; fourth number is one more then twice the third ; fifth number is one less then twice the fourth. Thus the sixth number is one more than twice the fifth.