Question

David walks 3 km in an hour.

In 24 h, he can walk km.

• A. 72
• B. 64
• C. 56

Answer 1

The correct option is A 72

David walks 3 km per hour.

To find out the distance traveled by David in 24 h, we have to multiply 24 with 3.

The expanded form of $24$ is:
24 = 20 + 4


So, we can write 24 $\times$ 3 as:

Let's draw a table and write 20 and 4 on top of the second and third column and 3 in the first column of the second row.

Now, we fill the table by multiplying the numbers in the corresponding rows and columns.

At last, we add all the products to get the final answer which is:
60 + 12 = 72


Hence, David can walk 72 km in 24 h.