Question

Mark got 14 problems wrong on the test. his score was 72% correct.how many problems were on the test

Answer 1

9514 1404 393

Answer:

50 problems

Explanation:

The percentage wrong was 100% -72% = 28%. Then the number n of problems on the test was ...

14 = 0.28·n

n = 14/0.28 = 50

There were 50 problems on the test.