Which option gives the two numbers that should replace the question marks (?), in order, in the series below?
4, 10, 22, 40, ?, 94, ?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 64, 130
Look at the difference between each pair of terms. The differences are the multiples of 6 in order:
\(10-4=6\), \(22-10=12\), \(40-22=18\)
Next difference 24: \(40+24=64\)
Next difference 30: \(64+30=94\), which matches the given term
Next difference 36: \(94+36=130\)
So the missing numbers are 64 and 130.