Answer:
The correct answer is B. 775
Complete the question and statement:
Evaluate S5 for 400 + 200 + 100 + … and select the correct answer below.
A) 25
B) 775
C) 1125
D) 500
Source: Previous question that can be found at brainly
Explanation:
This is a series of 5 terms, which first term is 400 and start decreasing by the half of the previous term. We're being asked for find the 5 terms and the sum of those 5 terms.
1. Let's five the 5 terms:
400, 200, 100, 50 and 25.
2. Let's five the sum of those 5 terms:
Sum = 400 + 200 + 100 + 50 + 25
Sum = 775
The correct answer is B. 775