A student erroneously multiplied a number by 2/5 instead of 5/2.What is the percentage error in the calculation?Choices:- 24% 54% 74% 84%
Question
Solution 1
To find the percentage error, we first need to understand the mistake. The student multiplied by 2/5 when they should have multiplied by 5/2.
Let's assume the original number is x.
- The student's result is (2/5)x.
- The correct result should have been (5/2)x.
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hich calculation is shown on the number line?−2 + 5 − 3 = 02 + 5 − 3 = 0−2 − 5 + 3 = 02 − 5 + 3 = 0