a student nerds to a score at least 30% marks to pass a test if a student gets 135 marks and fails by 15 marks find the maximum marks of the test
Answers
Answered by
174
135+15 = 150 is the passing marks
let the total marks of the exam be X
(150/x)×100= 30%
150/x=30/100
(150×100)/30 =x ∵by the cross-multiplication
500=x
the total marks is 500
let the total marks of the exam be X
(150/x)×100= 30%
150/x=30/100
(150×100)/30 =x ∵by the cross-multiplication
500=x
the total marks is 500
Answered by
42
Answer:
Step-by-step explanation:
passing marks=135+15
=150
ATQ-
x of 30%=150
30x/100=150
So,by cross multiplication,
x=(100×150)/30
=500
Hence,the maximum marks will be 500
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