Answer: [tex]Rs. 166.67[/tex]
Step-by-step explanation:
Given
Mark up price is 25% higher than cost price
The shopkeeper gives a discount of 10%
Suppose the cost price is [tex]x[/tex]
Mark up price is [tex]1.25x[/tex]
Selling price is
[tex]\Rightarrow 1.25x\times 0.9=1.125x[/tex]
It is given Rs150
[tex]\therefore 150=1.125x\\\Rightarrow x=\text{Rs}133.33[/tex]
Marked up price is [tex]\text{Rs }166.67[/tex]