Mathematics
Grade-7
Easy
Question
A person mistakes the price of a hat as $30 instead of $10. ___________ is the percent error
- 350%
- 200%
- 214%
- 195%
Hint:
In this question we will first find the error in the price of hat by substracting the correct price from the wrong price and then using the error price to find the error %
The correct answer is: 200%
STEP BY STEP SOLUTION
Correct price of hat = $10
Incorrect price of hat = $30
Error in the price = Incorrect price - Correct price
Error in the price = 30 - 10 = 20
Error % = 
Erroe % = 
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