The cost of one pen and two books together is rs70. the cost 3 pens and 9 books together is rs300. find the difference between cost of a book and a pen

If the cost of two pens and three books is ₹ 69 and that of three pens and two books is ₹ 66. Find the difference in the cost of each book and each pen. ( in ₹)

5 books and 7 pens together cost Rs 79 whereas 7 books and 5 pens together cost Rs 77. Find the total cost of 1 book and 2 pens.

The cost of 3 pens and 5 pencils is Rs 40. Find the cost of 12 pens and 20 pencils

5 books and 7 pens together cost Rs 434, whereas 7 books and 5 pens together cost Rs 550, find the total cost of 1 book and 2 pens.

Cost of 1 pen is Rs x and that of a pencil is Rs y Cost of 2 pens and 3 pencils together is

5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and S pens together cost Rs 46. Find the cost of one pencil and that of one pen.

3 bags and 4 pens together cost Rs 257 whereas 4 bags and 3 pens together cost Rs324. Find the total cost of 1 bag and 10 pens.

37pens and 53 pencils together cost Rs.320 , while 53 pens and 37 pencils together cost Rs ,400 .Find the cost of a pen and that of a pencil.

37 pens and 53 pencils together cost ₹ 955, while 53 pens and 37 pencil together cost ₹ 1115. Find the cost of a pen and that of a pencil.