Question

There are $279$ red bricks and $314$ brown bricks. If $172$ bricks are broken, who followed the correct steps to calculate the number of bricks that are not broken?

A: Step 1: Add $279$ and $172$.
Step 2: Subtract $314$ from the sum in step $1$.

B: Step 1: Add $279$ and $314$.
Step 2: Subtract $172$ from the sum in step $1$.

• A. Both A and
• B. B
• C. A
• D. Neither A nor B

Answer 1

The correct option is B B

To find the total number of bricks, we add $279$ and $314$.

• $279+314=593$

To find the number of bricks that are not broken, we subtract $172$ from $593$.

• $593-172=421$

B followed the correct steps.
Hence, option A is the correct answer.