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3 years ago

Please guys help to solve this problem

Mathematics

2 answers:

liq [111]3 years ago

6 0

9514 1404 393

Answer:

300

Step-by-step explanation:

Since nobody failed, the number who passed one or the other was 100%.

P(O + W) = P(O) +P(W) -P(O&W)

100% = 80% +70% -P(O&W)

P(O&W) = 50% = 150 students

If 150 students are 50% of the examinees, then 100% will be 300 students.

zhuklara [117]3 years ago

3 0

Answer:

hope it helps

<h3>#<em><u>CARRYONLEARNING</u></em></h3>

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Please guys help to solve this problem​

Please guys help to solve this problem