If the cost of 10 chairs is equal to the selling price of 16 chairs, find the gain or loss percent.

Let the cost of each chair be x.

Let the sp of each chair be y.

Now

10x = 16y.

x = 16y/10 = 8y/5

As Sp is less than cp so there is loss.

So

Loss % is CP-SP/CP * 100

Cp is x = 8y/5 and Sp = y

Loss is 8y/5-y / 8y/5 * 100 = 37.5%.

So there is a loss of 37.5%