Question

5pens and1 book of cost Rs225 cost of 10pens is equal to the cost of 1book . Find the total cost of 3pens and2books

Answer 1

cost of 10 pen = cost of 1 book .
cost of 5 pen and 1 book = 225 .
cost of 5 pen and 10 pen = 225
cost of 15 pen = 225
cost of 1 pen = 225/15= 15 .
cost of 3pen = 15× 3 = 45 .
cost of 2 book = 150× 2 = 300
cost of 3pen and 2 book = 345.