What base makes 121 equal to decimal 324?

[marcuss]

Base of the system problems, please help

What is the base of the system in which 121 represents the same number as the decimal number 324?






I need someone to tell what this thing is saying thank you.

 

[Chaos2009]

The base of the system is referring to base of the number system. i.e. base 2 is binary and base 10 is the decimal system that we usually use.

It is telling you that 324 is a decimal number so it is the normal numbers you work with, but 121 is not. You need to find what base it is in.

 

[Mark44]

If b is the base, then 121 (base b) represents 1*b^2 + 2*b + 1, which has to equal 324 (base 10).

 

[marcuss]

many thanks to both of u