A) \[\frac{33}{2}\]
B) \[\frac{145}{7}\]
C) 16
D) 17
Correct Answer: A
Solution :
We have, \[36x+24y=702\] and \[24x+36y=558\] Simplifying above equations, we get \[6x+4y=117\] ?...(1) and \[4x+6y=93\] ?...(2) Multiplying eq. (1) by 3, eq. (2) by -2 and then; adding, we get \[18x+12y-8x-12y=351-186\] \[\Rightarrow \] \[10x=165\] \[\Rightarrow \] \[x=\frac{165}{10}=\frac{33}{2}\]You need to login to perform this action.
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