दो संख्याओं का योग 28 है। पहली संख्या का दोगुना, दूसरी संख्या के तीन गुने से 16 अधिक है। वे संख्याएँ हैं:

The cost of 12 pens and 7 pencils is ₹233. If the cost of a pen decreases by ₹1.50 and the cost of a pencil increases by ₹1, then the cost of 2 pens and 3 pencils is ₹48. What is the original cost of 2 pens and 3 pencils?

If the total cost of 3 apples and 5 mangoes is Rs. 18, and that of 5 apples and 3 mangoes is Rs. 14, then what is the cost of 5 apples?