Find the missing term
1, 4, 27, 16, ?, 36, 343
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 125
The terms are the numbers 1, 2, 3, ... 7 in turn, with the odd numbers cubed and the even numbers squared.
Odd places: \(1=1^3\), \(27=3^3\), ?, \(343=7^3\)
Even places: \(4=2^2\), \(16=4^2\), \(36=6^2\)
The missing 5th term \(=5^3=125\)