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:	Answers
A) 2600
B) 2700
C) 2900
D) 3900
E) 4000
10c=4t   15c+2t=4000   take the cost of c &amp; t is 2000 b'coz 10c + 4t cost is same. and divid 2000 by 10 as well as 4 and get c &amp; t cost as,   1t-500   1c-200   therefore,   12c-2400 + 3t-1500 = 3900.   answer -3900
<result>D</result>
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: