Q.7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him ₹50 per meter and trouser material that costs him ₹90 per meter. For every 3 meters of the shirt material, he buys 2 meters of the trouser material. He sells the materials at 12% and 10% profit respectively. His total sale is ₹36,600. How much trouser material did he buy?
Let the total shirt material that Hasan bought be x metre.
and the total trouser material be y metre.
As per the question,
Thus trouser material
Now we will make another equaion by using cost of the materials.
Profit for shirt is 12% i.e., selling price of shirt is
and selling price for trouser is
Hence equation becomes:
or 56x + 66x = 36600
or 122x = 36600
Dividing both sides by 122:
x = 300
Thus trouser material that Hasan bought was = 200 meter