the marks in a test decreases from 40 to 30 the percentage decrease is
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12
original marks = 40
marks after decrease = 30
difference in marks = 40 - 30 = 10
% decrease = difference in marks × 100
original marks
= 10 × 100
40
= 25%
Answered by
0
Answer:
25•\•
Step-by-step explanation:
original marks = 40
marks ofter decrease = 30
difference €10
10÷100×40
=25%
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