Value with its error for a product or quotient of two measured quantities

1. A.
   $(3.00 \pm 0.010)$ $\mathrm{kg/m^3}$
2. B.
   $(3.00 \pm 0.015)$ $\mathrm{kg/m^3}$
3. C.
   $(3.00 \pm 0.020)$ $\mathrm{kg/m^3}$
4. D.
   $(3.00 \pm 0.045)$ $\mathrm{kg/m^3}$

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1. A.
   $(24.0 \pm 1.8)$
2. B.
   $(24.0 \pm 0.75)$
3. C.
   $(22.0 \pm 0.4)$
4. D.
   $(18.0 \pm 0.4)$

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1. A.
   $5\%$
2. B.
   $7\%$
3. C.
   $5.2\%$
4. D.
   $2.5\%$

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