A) Rs. 4100
B) Rs. 41061
C) Rs. 41062
D) Rs. 41081
Correct Answer: C
Solution :
Given that \[{{n}_{1}}=40,\] \[{{x}_{1}}=Rs.\,4200,\] \[{{n}_{2}}=35,\] \[{{x}_{2}}=Rs.\,4000\] \[\therefore \] \[\overline{x}=\frac{{{n}_{1}}{{x}_{1}}+{{n}_{2}}{{x}_{2}}}{{{n}_{1}}+{{n}_{2}}}\] \[\Rightarrow \] \[=\frac{40\times 4200+35\times 4000}{40+35}\] \[\Rightarrow \] \[=\frac{168000+140000}{75}\] \[=\frac{308000}{75}=4106\frac{2}{3}\]You need to login to perform this action.
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