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Thread: Compound if statements
03-23-2013, 11:03 PM #1
- Join Date
- Mar 2013
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Compound if statements
This is where I start, below is a practice and my solution for a problem statement that I have to right an algorithm for.
Is my solution correct?
Will my if statement compare the 3 values and come up with the best by?
Please enlighten me...
Rebecca needs to buy a bag of Milie meal. She wrote down the prices of 500 g, 750 g and 1 kg of Milie meal. Determine which one of the packets is the best buy. Do the calculations and display which packet she should buy. The user should be prompted to enter the prices for all three packets.
My answer is as follows
if price500g * 2 < price1kg AND price750g + 250 then
bestBuy = 500g
price750g + price750g / 3 < price500g * 2 and price1kg then
bestBuy = 750g
price1kg < price500g * 2 AND price750g + price750g / 3
bestBuy = 1kg
display "The Milie meal to buy is", bestbuy
03-24-2013, 09:04 PM #2
- Join Date
- Mar 2012
- Thanked 11 Times in 11 Posts
Well let's take a look...
Change the bold to price750g*(4/3) . This would give us the price for 1000g (equivalent).Code:if price500g * 2 < price1kg AND price750g + 250
We found the price of 500g in the first part, so you don't need to multiply price500g*2, instead we need to divide price1kg by two.Code:price750g + price750g / 3 < price500g * 2 and price1kg then
The first part looks good but for the second part we need to multiply price750g by four and divide that by 3.Code:price1kg < price500g * 2 AND price750g + price750g / 3
Of course the programming language would determine exactly how that looks.Code:price500g price750g price1kg if(price500g < (price750g*2/3) && price500g < price1kg/2) bestBuy = price500g; else if() . . . else if() . . .
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