A student got 25%of marks in an exam fails by 40marks another student got 40%of marks and passed by 20marks then find pass percentage ?
Answers
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STEP 1: Form equation:
Difference in percentage = 40 - 25 = 15%
Difference in marks = 20 - (-40) = 60 marks
15% = 60 marks
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STEP 2: Find 100% (Full marks):
15% = 60 marks
1% = 60 ÷ 15 = 4 marks
100% = 4 x 100
100% = 400
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STEP 3: Find passing marks:
Find the marks of the person who scored 40%:
1% = 4 marks
40% = 4 x 40 = 160 marks
We know that this person passed by 20 marks:
Passing marks = 160 - 20 = 140 marks
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STEP 4 : Find the percentage of the passing marks:
Percentage = 140/400 x 100 = 35%
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Answer: The pass percentage is 35%
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