Question

5 pens and one book together cost rupees 225 cost of 10 pens is equal to the cost of 1 book find the total cost of 3 pens and 2 books

Answer 1

1 book = 150 rupees

1 pen=15 rupees

5 pens =75 rupees

5 pens + 1 book=150+75=225 rupees

3 pens = 15x3=45 rupees

2 books=150x2=300 rupees

Thus,Total cost of 3 pens and 2 books=300+45=345 rupees