Question

Which is a better buy 12 kg potatoes for Rs.132 or 16 kg potatoes for Rs.168?

Answer 1

Hint:
Here we will firstly take the first deal and find the price of the potatoes per Kg in the first deal. Then we will take the second deal and find the price of the potatoes per Kg in the second deal. Then we will compare this price per Kg and the price which is less is the better deal.

Complete Step by step Solution:
The price for the 12 Kg of potatoes is for Rs.132.
Now we will find the price of the potatoes per Kg for this first deal. Therefore, we get
Price of the potatoes per Kg in first deal \[ = \dfrac{{132}}{{12}}\]
Price of the potatoes per Kg in first deal \[ = Rs.11\]
In the second deal the price for the 16 Kg of potatoes is for Rs.168.
Now we will find the price of the potatoes per Kg for this second deal. Therefore, we get
Price of the potatoes per Kg in second deal \[ = \dfrac{{168}}{{16}}\]
Price of the potatoes per Kg in second deal \[ = Rs.10.50\]
Therefore, we can clearly see that the deal second is the better deal.

Hence, 16 kg of potatoes for Rs.168 is better.

Note:
We should know that in this type of question we have to compare the price according to the price per Kg item not according to the whole price of the item. We should know that the selling price is the price at which something is sold. Cost price is the cost of producing something or the price at which it is sold without making any money. Profit is the money that you make when you sell something for more than it cost you and loss is the money you make when you sell something for less than it cost you.