Answer:
its 28
Step-by-step explanation:
28-12=16.
16/4=4
10+4=14.
Check 14/28= 1/2
There are 28 questions on the test.
He got 50% of the test correct. He had 10 questions correct out of the first 12 and 1/4 of the remaining questions correct.
let
x = number of questions
Therefore,
correct answer = 50% of x
10 + 1/4 (x - 12) = 0.5x
10 + 0.25x - 3 = 0.5x
7 = 0.5x - 0.25x
7 = 0.25x
x = 7 / 0.25
x = 28
Therefore, they are 28 questions on the test.
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