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the length of a wire is 6.26 m,a student measured it as 6.17 . What is the percentage error?
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To find the percentage error,
- first find the difference,
- then relate it to the base value, which is 6.26 meters in this case,
- and then multiply this ratio by 100 to get the percentage.
By knowing the rule, make all these calcs in one line
the percentage error = = 1.44% (rounded). ANSWER
Solved.
* * * M E M O R I Z E this mantra and use / repeat it every time when you need solve such problems. * * *
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On percentage, see the lessons
- Percentage problems
- Percentage word problems (Type 1 problems, Finding the Part)
- Percentage word problems (Type 2 problems, Finding the Rate)
- Percentage word problems (Type 3 problems, Finding the Base)
- Simple percentage problems
- More complicated percentage problems
- Advanced problems on percentage
- Percentage problems on chains of discounts
- Problems on percentage that lead to unexpected results
- OVERVIEW of lessons on percentage problems
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