# How long will it take $700 to triple itself at 10% simple interest? ##### 1 Answer Nov 30, 2016 20 payments #### Explanation: $700+(10/100xx$700)  is 1 payment Let the count of payments be $x$$700+x(10/100xx$700)=3xx$700

x(10/100xx$700)=(3xx$700) - £700

x($70)=$1400

x=($1400)/($70) = 140/7=20