Question

The king's courtroom has a staircase containing 1234 stairs. If each step is 12 cm tall, how tall is the entire staircase?

• A. 14,574 cm
• B. 14,808 cm
• C. 14,042 cm
• D. 14,276 cm

Answer 1

The correct option is B 14,808 cm

Height of each stair $=12cm$.

Total number of stairs in the staircase $=1234$.

So, total height of the staircase will be:
$=1234\times 12cm$.

Calculating $1234\times 12$ using the standard algorithm process,

Step 1: Multiplying $1234$ by $2$, you get $2468$ as the result.


Step 2: Multiplying $1234$ by $10$, you get $12340$ as the result.


Step 3: Finally, adding $2468$ to $12340$, you get the final answer as $14808$.



So, $1234\times 12=14,808$.

Therefore, the total height of the staircase is $14,808cm$.