Answer:
2.75632 rounded to 5 decimal places
Step-by-step explanation:
a(r^n-1)/r-1 is the formula for sum of geometric series
where a= first term (1.4)
n= number of terms(6)
r= common ratio(0.5)
33/130
3/4 - 1/5 = 11/20
5/2 - 1/3 = 2 and 1/6
11/20 divided by 13/6 = 33/130
The increase is 1150.
11.5 times the original value, or 1150% of it. That's a big increase, and I would not buy that thing, whatever it is.
Answer:10 percent
