In a shop in Pune, 1 notebook and 1 pen cost Rs 50 together.
A notebook costs Rs 20 more than a pen.
Using substitution, find the cost of the pen (in Rs).

Question

In a shop in Pune, 1 notebook and 1 pen cost Rs 50 together. A notebook costs Rs 20 more than a pen. Using substitution, find the cost of the pen (in Rs).

Accepted Answer

15. Let pen = p, notebook = p + 20. Then p + (p + 20) = 50, 2p = 30, p = 15. Pen costs Rs 15.

In a shop in Pune, 1 notebook and 1 pen cost Rs 50 together.
A notebook costs Rs 20 more than a pen.
Using substitution, find the cost of the pen (in Rs).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Substitution Method practice

In a shop in Pune, 1 notebook and 1 pen cost Rs 50 together.A notebook costs Rs 20 more than a pen.Using substitution, find the cost of the pen (in Rs).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Substitution Method practice

In a shop in Pune, 1 notebook and 1 pen cost Rs 50 together.
A notebook costs Rs 20 more than a pen.
Using substitution, find the cost of the pen (in Rs).