(Also read: Brain teaser: If you solve this tricky maths puzzle ... asking: "What number should come next?" The sequence given is: 5, 2, 7, 9, 16, 25, ? Take a look here at the puzzle: This ...

The number added (or subtracted) at each stage of the linear sequence remains the same. STEP 1 - You can solve problems using linear sequences. For example, if I have £5 already and save £3 per ...