# How much can you SUM!

Level pending

The respective each summation has its upper limit as n and lower limit the respective alphabetical letters in order...

$$\sum \sum \sum \sum \sum \sum \sum { 1 }$$

1<=a<b<c<=d<e<f<g<n

The answer is in combination term(C) so pls give ur answer as" nC3 " ...

All the best!

×