A sweet seller has 420 kaju barfis and 130 badam barfis . She wants to stack them un such a way that each stack has the same number , and they take up the least space of the tray . What is the number of barfis that can be placed in each stack .
Answers
Step-by-step explanation:
The area of the tray that is used up in stacking the burfis will be least if the sweet seller stacks maximum number of burfis in each stack. Since each stack must have the same number of burfis. Therefore, the number of stacks will be least if the number of burfis in each stacks in equal to the
HCF of 420 and 130.
In order to find the HCF of 420 and 130, let us apply Euclids division lemma to 420 and 130 to get
420=130×3+30
Let us now consider the divisor 130 and the remainder 30 and apply division lemma to get
130=30×4+10
Consider now divisor 30 and the remainder 10 and apply division lemma, we get
30=3×10+0
Since the remainder at this stage is zero. Therefore, last divisor 10 is the HCF of 420 and 130.
Hence , the sweet seller can make stacks of 10 burfis of each kind to cover the least area of the tray.