If S1 is the sum of intergers from 1 to 60 and S2 is the sum of the integers from 61 t0 100,what is the value of S2--S1?

2 answers

The value of S2-S1 is 2,940.
AAAaannndd the bot gets it wrong yet again!

40/2 (61+100) - 60/2 (1+60) = 1390