Question

1. 25 - 4 ÷ (4/5) + 11

Explanation:

Step1: Handle division operation

According to the order of operations (PEMDAS/BODMAS), we first perform the division. The division is \(4\div\frac{4}{5}\). Dividing by a fraction is the same as multiplying by its reciprocal, so \(4\div\frac{4}{5}=4\times\frac{5}{4}\). The 4 in the numerator and denominator cancels out, giving \(4\times\frac{5}{4} = 5\).

Step2: Perform addition and subtraction from left to right

Now we substitute the result of the division back into the original expression: \(25 - 5+11\). First, do \(25 - 5 = 20\). Then, do \(20 + 11 = 31\).

Answer:

31