The marks in a test decreased from 40 to 30. The percentage decre… - Vidyadip

MCQ

The marks in a test decreased from $40$ to $30$. The percentage decrease is.

A
$10\%$
B
$20\%$
✓
$30\%$
D
$40\%$

✓

Answer

Correct option: C.

$30\%$

Percentage decrease $=\frac{40-30}{40}\times100\%=25\%$

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