A) Rs. 11,000
B) Rs. 12,000
C) Rs. 13,000
D) Rs. 10,000
Correct Answer: B
Solution :
The C.P. of 1 cow = Rs.\[x\]and that of a goat = Rs. y. \[3x+8y=47200\] ....(i) \[8x+3y=100200\] ....(ii) By equation (i) x 3 - (ii) x 8, \[9x+24y-64x-24y=141600-801600\] \[\Rightarrow \,\,55x=660000\] \[\Rightarrow \,\,x=\frac{660000}{55}=Rs.\,12000\]You need to login to perform this action.
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