Find the Missing Number
A sequence of numbers follows a particular pattern:
3, 6, 11, 18, 27, ?
What number should replace the question mark?
A box of biscuits
A box of biscuits contains 36 biscuits. 20 biscuits have foil wrappers. 15 are chocolate biscuits with foil wrappers. If 9 are not chocolate and do not have a foil wrapper, then how many chocolate biscuits are there?
We can see that the pattern is that you start with adding 3, then for each number, you increase the number you add by 2.
ReplyDelete3 + 3 = 6
6 + 5 = 11
11 + 7 = 18
18 + 9 = 27
Therefore, to get the next number we have to add 11 to 27. This would be equal to 38, which is therefore our answer