PrabalPokhrel
Answered

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Please guys help to solve this problem​

Please Guys Help To Solve This Problem class=

Sagot :

sqdancefan

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.

View image sqdancefan
janlee113

Answer:

[tex]300[/tex]

hope it helps

#CARRYONLEARNING

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