If 15a+15b=750, the average of a and b will be —
2023
If 15a+15b=750, the average of a and b will be —
- A.
30
- B.
45
- C.
25
- D.
15
- E.
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Correct answer: C
To find the average of a and b, we need to determine the value of (a + b) / 2 based on the given equation.
Step-by-Step Analysis
Given Equation:
15a + 15b = 750
Simplify the Equation:
We can factor out 15 from the left side:
15 * (a + b) = 750
Solve for (a + b):
Divide both sides by 15:
a + b = 750 / 15
a + b = 50
Calculate the Average:
The average of a and b is (a + b) / 2.
Average = 50 / 2 = 25.