SOLUTION: 2 black and 3 read pen bought for Rs. 23 then 3 black and 2 read pen bought for Rs. 16 how much paid for 1 black pen?

Algebra ->  Equations -> SOLUTION: 2 black and 3 read pen bought for Rs. 23 then 3 black and 2 read pen bought for Rs. 16 how much paid for 1 black pen?      Log On