Answer:
16.5.
Step-by-step explanation:
This is an arithmetic series because the increase is a constant 0.30.
Sum of n terms = (n/2)[a + l) where n = no.of terms a = first term , l = last term.
There are 3/ 0.3 = 10 terms so
Sum = (10/2) (0.3 + 3.0)
= 5 * 3.3
= 16.5.