# Math Help - Is this an exponential type question

1. ## Is this an exponential type question

A group of people are asked ten questions, if they get 1 question right they get a £5, if the get two right they get £10, if they get 3 right they get £20.

2. ## Re: Is this an exponential type question

That isn't a question at all. Are you trying to find something?

The formula you'd need to express it does involve an exponent. You're going to have to be more specific.

3. ## Re: Is this an exponential type question

Originally Posted by David Green
A group of people are asked ten questions, if they get 1 question right they get a £5, if the get two right they get £10, if they get 3 right they get £20.
It is exponential: $5\cdot 2^{n-1}$.