Correct option is D
Given series: 49, 54, 41, 62, 33, 70, ?
Now, let’s separate the odd and even positions to check if they follow the given alternating
1st series (odd positions): 49, 41, 33, ?
49−8=41
41−8=33
33−8=25
2nd series (even positions): 54, 62, 70
54+8=62
62+8=70
The alternating pattern is confirmed, so the missing number is 25.
The correct answer is (d) 25.