Question

How many hours are there in exactly \[3\] weeks?

Answer 1

Hint: Since the question is asking for the number of hours in weeks then we just need to apply the unitary method but in this, we have applied it multiple times that is first calculate the total hours in a day then multiply it with the number of days in a week then again multiply the obtained value with the required number of weeks.

Complete step by step solution:
As we know that the number of hours in a day are \[24\]
\[\Rightarrow 1\text{ day = 24 hours}\]
And the number of days in a week are \[7\]
\[\Rightarrow 1\text{ week = 7 days}\]
Then the number of hours in \[1\] week
\[
   \Rightarrow 24\times 7 \\
  \Rightarrow 168 \\
\]
Now we have calculated the total hours in \[1\] week
So, to calculate the hours in \[3\] weeks we just need to multiply the above obtained value with \[3\]
\[
   \Rightarrow 168\times 3 \\
  \Rightarrow 504 \\
\]

Hence the total hours in \[3\] weeks are \[504\].

Note:
In this type of question, we just need to apply the unitary method too that is first calculated for the unit day then a unit week then the required number of weeks. In maths just write down what the question has given to us and what we have to find then will automatically generate a common link between them.