Rezas average in four tests is 80% . what marks does he need in his fifth test to raise his average to 84% .

Reza's average in four tests is 80% . what marks does he need in his fifth test to raise his average to 84% .

Reza's average in four tests is 80% . what marks does he need in his fifth test to raise his average to 84% . ?

Created: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

96%

94%

84%

100%

0 1

Best Answer Explained in Below-:

ধরি, প্রথম 4টি exam এর যোগফল x এবং 5th exam এ পাওয়া marks y xy = 80x = 4x80and,x + \(y^{5}\) = 84So,Y = 5x84 - x অথাৎ 100%

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Which fraction is the largest?

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