A student who secures 20% marks in a test fails by 30 marks. Another student who secures 32% marks get 42 marks more than those required to pass. Pass percentage of marks is
A. 25%
B. 28%
C. 30%
D. 35%
E. 40%
সঠিক উত্তরঃ
A.
25%
Explanation:
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