In making an alloy, a substance of specific gravity $${{s}_{1}}$$ and mass $${{m}_{1}}$$ is mixed with another substance of specific gravity $${{s}_{2}}$$ and mass $${{m}_{2}}$$; then the specific gravity of the alloy is [CPMT 1995]

Question

In making an alloy, a substance of specific gravity $${{s}_{1}}$$ and mass $${{m}_{1}}$$ is mixed with another substance of specific gravity $${{s}_{2}}$$ and mass $${{m}_{2}}$$; then the specific gravity of the alloy is       [CPMT 1995]

TuteeHUB · Accepted Answer

$$\frac{\left( \frac{{{m}_{1}}}{{{s}_{1}}}+\frac{{{m}_{2}}}{{{s}_{2}}} \right)}{{{m}_{1}}+{{m}_{2}}}$$

TuteeHUB · Answer

$$\left( \frac{{{m}_{1}}+{{m}_{2}}}{{{s}_{1}}+{{s}_{2}}} \right)$$

TuteeHUB · Answer

$$\left( \frac{{{s}_{1}}{{s}_{2}}}{{{m}_{1}}+{{m}_{2}}} \right)$$

TuteeHUB · Answer

$$\frac{{{m}_{1}}+{{m}_{2}}}{\left( \frac{{{m}_{1}}}{{{s}_{1}}}+\frac{{{m}_{2}}}{{{s}_{2}}} \right)}$$

1.	In making an alloy, a substance of specific gravity \[{{s}_{1}}\] and mass \[{{m}_{1}}\] is mixed with another substance of specific gravity \[{{s}_{2}}\] and mass \[{{m}_{2}}\]; then the specific gravity of the alloy is [CPMT 1995]
A.	\[\left( \frac{{{m}_{1}}+{{m}_{2}}}{{{s}_{1}}+{{s}_{2}}} \right)\]
B.	\[\left( \frac{{{s}_{1}}{{s}_{2}}}{{{m}_{1}}+{{m}_{2}}} \right)\]
C.	\[\frac{{{m}_{1}}+{{m}_{2}}}{\left( \frac{{{m}_{1}}}{{{s}_{1}}}+\frac{{{m}_{2}}}{{{s}_{2}}} \right)}\]
D.	\[\frac{\left( \frac{{{m}_{1}}}{{{s}_{1}}}+\frac{{{m}_{2}}}{{{s}_{2}}} \right)}{{{m}_{1}}+{{m}_{2}}}\]
Answer» D. \[\frac{\left( \frac{{{m}_{1}}}{{{s}_{1}}}+\frac{{{m}_{2}}}{{{s}_{2}}} \right)}{{{m}_{1}}+{{m}_{2}}}\]

In making an alloy, a substance of specific gravity \[{{s}_{1}}\] and mass \[{{m}_{1}}\] is mixed with another substance of specific gravity \[{{s}_{2}}\] and mass \[{{m}_{2}}\]; then the specific gravity of the alloy is [CPMT 1995]

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