Whats the options please?
B is 90-42=48° since complementary angles add to 90°

so... you tells us, which filling rate is the bigger and thus faster one?
Answer:
A is correct
Step-by-step explanation:
So, first let's change these numbers into decimal form:
3*0.1 + 4*0.01 + 8*0.001 ? 1.2
Multiply:
0.3 + 0.04 + 0.008 ? 1.2
0.348 < 1.2
One and two tenths is larger.
Hopefully this is what you're asking, as this question is unclear