4. The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:
A. Rs. 3840
B. Rs. 3900
C. Rs. 3500
D. Rs. 3750
4. The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:
A. Rs. 3840
B. Rs. 3900
C. Rs. 3500
D. Rs. 3750