If 2kg of mangoes and 3kg of apples cost Rs.102 and 3 kg of mangoes and 1kg of apple cost Rs. 76. What is the cost of per kg of mango? Choose the correct choice from the following options.
A) Rs.20  B) Rs.19  C) Rs.16  D) Rs.22  E) Rs.18
Let the cost of each pen and pencil be 'p' and 'q' respectively.   2x + 3y= 102 --- (1)   3x + y = 76   9x+ 3y = 228 --- (2)   (1) - (2) =&gt; 7x = 126   =&gt; x = 18   ANSWRs.18R:Rs.18
<result>E</result>
If 2kg of mangoes and 3kg of apples cost Rs.102 and 3 kg of mangoes and 1kg of apple cost Rs. 76. What is the cost of per kg of mango?