Question

Alyssa missed 64 questions on her multiple choice science final and earned a grade of 68%. How many total questions were on the final exam?

Answer 1

Answer: 94 questions

Step-by-step explanation:

is                  %

-----      =       -----

of                100

64                68    68 is the percent Alyssa got correct on the exam.

-----      =      -----    64 is the questions she got wrong of an unknown total.

x                 100   x is the unknown variable. (the total questions on the test)                  

Cross multiply to get this: 64*100 = 68x  

                                               6400 = 68x    (Divide by 68 on both sides)

                           You should get about 94.11 after dividing. You have to round as there cannot be have a question. It should be rounded to 94 questions. There are 94 questions and 64 were missed. To check your work, do 64/94. This should give you about 68% after rounding.