Question

21 murals cost $\$3339$. The cost of painting each mural is calculated as follows:

The "incorrect" step in the calculation is

• A. Step 1
• B. Step 2
• C. Step 3

Answer 1

The correct option is B Step 2

Total cost = $\$3339$
Total number of murals = 21.

∴ To find cost of each mural, we have to divide 3339 by 21.

Calculating $3339÷21$, we get:


The value of the final quotient will be 159.

Comapring these steps to the given steps in the calculation, we find that $Step2$ was incorrect.


In $Step2$, the correct number will be $1050$ and not $105$.

∴ The incorrect step is $Step2$.