Question

The weight of a box is $4\,kg\,800\,gm$. What is the total weight of $150$ for such boxes?

Answer 1

Hint: In the given question, we are provided with the weight of the box and we have to calculate the weight of $150$ such boxes. So, we first convert the weight of the box into kilograms by using the conversion of grams into kilograms. Then, we multiply the weight of one box by a suitable number so as to get the required answer.

Complete step-by-step answer:
So, the weight of one box $ = 4\,kg\,800\,gm$
Now, we have to first convert the weight into kilograms solely. So, we must remember the conversion of rams into kilograms for this. We know that one kilogram is equivalent to a thousand grams. So, we have, $1\,kg\, = 1000\,g$.
Now, we divide the above conversion by $1000$ in order to get the conversion of one gram into a kilogram. So, we get,
$ \Rightarrow 1g = \dfrac{1}{{1000}}kg$
Now, we multiply both sides of the above equation by $800$. So, we get,
 $ \Rightarrow 800g = \dfrac{{800}}{{1000}}kg$
Now, we know that division of any number by a power of ten is an easy task. We just have to place a decimal point on the left of the same number of digits as the number of zeroes in the power of ten. So, we get,
$ \Rightarrow 800g = 0.800kg$
So, $800g$ is equivalent to $0.8\,kg$.
Now, the weight of a single box is $4\,kg\,800\,gm = 4kg + 0.8kg = 4.8kg$.
Now, we have to calculate the weight of $150$ such boxes for 150. So, we multiply the weight of a single box by $150$.
So, the weight of $150$ such boxes $ = 50 \times 4.8kg$
Simplifying the calculations, we get,
$ = 240\,kg$
So, the total weight of $150$ such boxes is $240\,kg$.
So, the correct answer is “$240\,kg$”.

Note: The above-mentioned method can be remembered as a complete process for solving these types of questions. Be careful with the language while attending to these types of questions, because there are many questions that may confuse you with the tricky and typical language. These types of questions are easy to solve when you are writing an exam as it takes less time to solve when you are thorough with this concept and have practiced an ample amount of questions. Take special care of the calculations in order to get to the correct answer.