 
 <translate> The cost of the pots is 3 * $20 = $60. The cost of 4 pans is $100 - $60 = $40. Since each pan is the same price, the cost of 1 pan is $40 / 4 = $10. The cost of 2 pans is $10 + $10 = $20.
Thus, the answer is 20. <ibo> Ọnụ ego ite ndị ahụ bụ 3 * $20 = $60. Ọnụ ego pan anọ bụ $100 - $60 = $40. Ebe ọ bụ na pan nke ọ bụla na-efu otu ihe, ọnụ ahịa pan 1 bụ $40 / 4 = $10. Ọnụ ego pan abụọ bụ $10 + $10 = $20. N'ihi ya, azịza ya bụ 20. 