 QUESTION

# If a quarter kg of green chillies cost 60 paise, how many paise will 200 g cost?A.48 paiseB.54 paiseC.56 paiseD.72 paise

Hint: The given problem is related to fractions. Use the following information to solve the problem: Quarter means one-fourth i.e. $\dfrac{1}{4}$ and Rs.1 = 100 paise.Therefore its 250g for 60 paise.We use a unitary method to solve this problem.

As specified in the hint, quarter means one-fourth i.e. $\dfrac{1}{4}$. So, a quarter kg means one-fourth of a kg
\begin{align} & \Rightarrow \dfrac{1}{4}of1kg \\ & \Rightarrow \dfrac{1}{4}\times 1kg \\ \end{align}
We know that 1kg = 1000 g.
$\Rightarrow \dfrac{1}{4}\times 1000g=250g$
Hence, 250 g of green chillies cost 60 paise.
Now, according to the question, we have to find the cost of 200 g of chillies.
So, we will use the Unitary Method of Mathematics, to solve it.
Cost of 250 g of green chillies = 60 paise.
$\therefore$The cost of 1 g of green chillies will be = $\dfrac{60}{250}$ paise.
Now, as 1 g of green chillies cost $\dfrac{60}{250}$ paise.
Therefore, 200 g of green chillies will cost $\dfrac{60}{250}\times 200$ paise.
$\Rightarrow \dfrac{60}{250}\times 200=48$ paise.
Hence, the cost of 200 g of green chillies is 48 paise.

Note: In this question, the calculation part is not very large, but there can be questions like this which will involve solving large calculations, especially in the case of decimal figures. So, there can be a possibility of mistakes. Also, the possibility of mistake can be not thinking of the appropriate formula, or not linking the question to that particular concept while solving. You are advised to follow every step properly to avoid calculation mistakes and it will also save you time.