Deepak marks the price of his table 50 percent above the cost price. He gives some discount on it and earns profit of 10 percent. What is the discount percentage?

Marked Price (MP) is 50% above the Cost Price (CP)

Profit earned is 10% of CP

Discount percentage is given by:

Let the CP be 100.

Then, MP = $$100 \times \frac{150}{100} = 150$$ 

Profit is 10% of CP ;

So, SP = $$100 \times \frac{110}{100} = 110$$ 

Now, 

Discount % = $$\frac{150 - 110}{150} \times 100 = \frac{40}{150}\times 100 \approx 26.67\%$$ 

Thus, Discount % is 26.67%.​