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If 6 pens and 7 pencils together cost Rs.90, while 5 pens and 6 pencils cost Rs.76, what will be the cost of each pen?

Question

If 6 pens and 7 pencils together cost Rs.90, while 5 pens and 6 pencils cost Rs.76, what will be the cost of each pen?
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Solution 1

Let's solve this problem step by step:

Step 1: Let's denote the cost of a pen as P and the cost of a pencil as Q.

Step 2: From the problem, we can form two equations based on the given information. The first equation is from the first sentence: 6P + 7Q = 90. The second equation is from the second Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.

Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
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