the cost of 3 books and 12 pens is equal to 27 and cost of 2 books and x pens equal to 18 find x
Answers
Answered by
0
Answer:
Let say price of one book is X, and price of one pen is Y.
2X+3Y =225
3x+4Y= 320
By multiplying 3 in equation 1 and multiplying 2 in equation 2
6X+9Y =675
6X +8Y = 640
So by elimination method Y is equal to 35.
The cost the cost of one pen is 35 rupees.
7.6K viewsView upvotes
Step-by-step explanation:
Similar questions