Question 67
Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions for the given statement:
If a notebook costs Rs. p and a pencil costs Rs. 3, then the total cost (in Rs. ) of two notebooks and one pencil.
Given,
Cost of one notebook = Rs. p
∴Cost of 2 notebooks = 2 ×p = Rs. 2p
Cost of one pencil = Rs. 3
Total cost = cost of two notebooks + cost of one pencil
∴Total cost = Rs. (2p + 3)