Percentage error in 4±0.2

1.	Percentage error in 4±0.2
Answer» ANSWER: $\sf{The \ percentage \ error \ in \ 4\pm0.2 \ is \ 5\%.}$ GIVEN: $\sf{a\pm\Delta a=4\pm0.2}$ Formula: $\sf{Percentage \ error=\dfrac{\Delta \ a}{a}\times100}$ SOLUTION: $\sf{Percentage \ error=\dfrac{0.2}{4}\times100}$ $\sf{\therefore{Percentage \ error=0.2\times25}}$ $\sf{\therefore{Percentage \ error=5\%}}$ $\sf\purple{\tt{\therefore{The \ percentage \ error \ in \ 4\pm0.2 \ is \ 5\%.}}}$ ________________________________ $\sf\blue{Extra \ information}$ $\sf{Relation \ error=\dfrac{\Delta \ a}{a}}$ $\sf{Percentage \ error=Relative \ error\times100}$

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