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Grade: 12th pass

                        

Please solve the problem with full explanations and solve one variable term One variable term

Please solve the problem with full explanations  and solve one variable term 
One variable term

8 months ago

Answers : (2)

Shubham
askIITians Faculty
38 Points
							Total no of pens = 35
Let the value of inexpensive pen = x ( per pen)
And let no of inexpensive pen = n1
So no of expensive pen = 35 - n1
Let the value of expensive pen = y
Now according to the question
x*n1+ (35 - n1) * y = 60
(given x = 1.5 rs and y = 2 rs)
So put the values of x & y in the above equation
You get n1= 20
So no of expensive pen = 35 - 20 = 15 Ans.

8 months ago
Saurabh Koranglekar
askIITians Faculty
10341 Points
8 months ago
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