Question

3 mark for review
in a sample, 80% of the items are faulty. there are 88 faulty items in the sample. how many total items are in the sample?

Explanation:

Step1: Define the variable

Let \( x \) be the total number of items in the sample.

Step2: Set up the equation

We know that 80% of \( x \) is equal to 88. Mathematically, this can be written as \( 0.8x = 88 \) (since 80% is equivalent to 0.8 in decimal form).

Step3: Solve for \( x \)

To find \( x \), we divide both sides of the equation by 0.8: \( x=\frac{88}{0.8} \). Calculating the right - hand side, \( \frac{88}{0.8}=110 \).

Answer:

110