Respuesta :
Answer:
25
Step-by-step explanation:
You start by multiplying 2*3*4 which gives you 24, then you add 1 to that, which is 25.
Answer:
25
Step-by-step explanation:
it's form Arithmetic Series (in it sum of A.M). By using the formula: sum=n/2*(2a+(n-1)d).