Question

In 2011, a professional climber scaled the outside of Burj Khalifa making it all the way to 828 meters in 6 hours. how far did they climb in the first 2 hours?

Answer 1

Given:

Professional climbers climb 828 meters in 6 hours.

To find:

how far did they climb in the first 2 hours?

Solution:

According to the question,

In 6 hours, they climb 828 meters.

In 1 hour, they climb $\dfrac{828}{6}$ meters.

In 2 hour, they climb $2\times \dfrac{828}{6}$ meters.

Now, the distance they climb in the first 2 hours is

$\text{Climb in first two hours}=2\times \dfrac{828}{6}$

                                      $=\dfrac{828}{3}$

                                      $=276$

Therefore, they will climb 276 meters in first 2 hours.