Final answer:
There are 20 true/false questions on the test.
Step-by-step explanation:
The test consists of true/false questions worth 4 points each and multiple-choice questions worth 5 points each.
Let's assume there are 'x' true/false questions on the test.
Hence, the total number of questions on the test is 'x + (24 - x)' = 24.
The point value for the true/false questions is 4 and for the multiple-choice questions is 5.
We can create the equation: 4x + 5(24 - x) = 100.
Simplifying the equation, we get: 4x + 120 - 5x = 100.
Combining like terms, we get: -x = -20.
Dividing both sides by -1, we get: 'x = 20'.
Therefore, there are 20 true/false questions on the test.