one-half of the class got AS. one -third of the rest got Bs. one -quarter of the remainder got cs. one-fifth of the others got Ds . what fraction of the class got ES or worse?
(1)2/9
(2) 1/5
(3) 3/14
(4) none of these
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Answer:
1 should be ur answer
pls brainliest and hope it helps
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Step-by-step explanation:
Let no. of students in class =n
=> Grade fraction
A n/2
B n/6
C n/12
D n/20
Fraction of E and worse = n · (30+10+5+3)n/60
= 1/5 n
Hence, second option is the correct option.
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