The cost of 7 tables and 12 chairs is Rs. 48,250. What is the cost of 21 tables and 36 chairs?

Q. The cost of 7 tables and 12 chairs is Rs. 48,250. What is the cost of 21 tables and 36 chairs?
A. Rs. 96,500
B. Rs. 1,25,500
C. Rs. 1,44,750
D. Cannot be determined
E. None of these

Answer is: C solution:- let x be table & y be chair; 7x+12y = 48250 ; multiply both sides by 3 3(7x+12y)=3*48250 21 x + 36 y = 144750

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