Question

An engineering student answered 81 questons correctly ona 90 question test. What percent of the question did she answer correctly? questions correctly on a 90 question test. What percent of the questions she answered correctly?

Answer 1

90%

Explanation:

Answer 2

correct answer = 90%

Explanation:

Let x be the percent of the question did she answer correctly.

Given:

An engineering student answered 81 questions correctly on a 90 question test.

Find the percent of the question did she answer correctly.

Solution:

Percentage formula is given below

% answer
`=(correct\ answer)/(total\ questions)* 100`

% answer
`=(81)/(90)* 100`

% answer
`=(81* 100)/(90)`

% answer
`=(81* 10)/(9)`

% answer
`=9* 10`

% answer
`=90`

correct answer = 90%

Therefore, she answered 90% correctly.