In a department store the owner paid $15 for 1kg of sugar. the owner marked the price up by 10% for the customers. how much dose he charge for 1kg of sugar

First, we need to figure out 10% of fifteen.

So, we multiple 15 by 10% (or 0.1 in simpler terms).

That gives us 1.5, which is our mark-up price.

So, finally we add the markup price to the original price to obtain the selling price.

1.5 + 15 = 16.5

The owner charges $16.50 for 1kg of sugar!