Ramlal marks up his goods by 40% and gives a discount of 10%. What is his net profit percentage?

Markup on goods = 40%.

Discount offered = 10%.

Selling Price (SP) after discount = Marked Price (MP) – Discount.

Cost Price (CP) = 100% (assuming CP is 100).

Net Profit Percentage = $$\frac{\text{Profit}}{\text{Cost Price}} \times 100.$$​​

Let the Cost Price (CP) of the goods be 100 units.

Since the goods are marked up by 40%,

 Marked Price  = 100 + 40 = 140 unit.

A discount of 10% is given on the Marked Price,

So $$\text{SP} = \text{MP} - 10\% \text{of MP} = 140 - \frac{10}{100} \times 140 = 140 - 14 = 126 \ (\text{units}).$$​​

Profit = Selling Price – Cost Price = 126−100 = 26 units.

​$$\text{Net Profit Percentage} = \frac{26}{100} \times 100 = 26\%.$$​​

Therefore, Ramlal’s net profit percentage is 26%.