Question

Cost of 50 chocolates is Rs. 100, then what is the cost of 1 chocolate?

Answer 1

Hint: We have given the cost of 50 chocolates and have been asked to find the cost of 1 chocolate which we are going to find by using the unitary method. In the unitary method, we have given the values for many objects and can find the value of 1 object from that. So, by dividing 100 by 50 chocolates, we can get the cost of 1 chocolate.

Complete step-by-step solution:
In the above problem, the cost of 50 chocolates is given as follows:
Rs. 100
And we are asked to find the cost of 1 chocolate. Now, to handle this problem, we are going to use the unitary method in which by using the cost of 50 chocolates, we can find the cost of 1 chocolate.
We have given the cost of 50 chocolates which is equal to Rs. 100 and we are going to find the cost of 1 chocolate by dividing Rs. 100 by 50 and we get,
$\dfrac{100}{50}$
As you can say that one zero will get canceled from the numerator and the denominator and we get,
$\dfrac{10}{5}$
Now, as you can see that the numerator and the denominator is divisible by 5 so dividing the numerator and denominator by 5 we get,
$\begin{align}
  & \dfrac{2}{1} \\
 & =2 \\
\end{align}$
From the above solution, we got the cost of 1 chocolate as Rs. 2.

Note: We can check whether the cost of 1 chocolate which we are getting is correct or not by multiplying the cost of 1 chocolate by 50 and then see if we are getting the same value of cost of 50 chocolates as that is given in the above problem.
We have found the cost of 1 chocolate as Rs. 2.
$\begin{align}
  & 2\times 50 \\
 & =100 \\
\end{align}$
We got the same cost of 50 chocolates as given in the above problem so the cost of 1 chocolate which we have solved above is correct.