A student got 74% in math and 84% in history.

A student got 74% in math and 84% in history. To get an overall average of 75%, how much should the student get in the third subject?

Answer/Solution

67%

Steps/Work

74 + 84 + x = 3*75
x = 67
The answer is D.

General Calculator / Auto Solver

A student got % in math and % in history. To get an overall average of %, how much should the student get in the third subject?

Calculated Answer

67

Step by Step Solution

In order to solve problem, you must evaluate n₂ * 3 - (n₀ + n₁).

n₀ =	74
n₁ =	84
n₂ =	75

n₂ * 3 - (n₀ + n₁)
Evaluate n₂ * 3 = 225
225 - (n₀ + n₁)
Evaluate n₀ + n₁ = 158
225 - 158
Evaluate 225 - 158 = 67
67
The answer to the problem and the result of n₂ * 3 - (n₀ + n₁) is 67