Concept:The given equations follow a fixed pattern: multiply the two numbers, then subtract 10 from the product.Explanation:First check the pattern with the given values.18×12=216216−10=206So, 18×12=206 is satisfied.Next, check the second given value.19×22=418418−10=408So, 19×22=408 is also satisfied.Now apply the same rule to 23×36.23×36=828828−10=818Hence, the required value is 818.Answer:23×36=818, so the correct option is B.