Perfume is sold in two different sizes of bottle

First bottle:
unit price .... £55/80 ml = 68.75 cents/ml

2nd bottle:
50 ml at £45 plus 50 ml at £22.50
or 100 ml for £67.50
unit price = £67.50/100 = 67.50 cents/ml

so what do you think?

For the first bottle:

£55÷80= 0.6875

For the second bottle(s):

Since we're working out the price for two bottles, add the millilitres together. So:

50ml + 50ml = 100ml

Then add the prices together, considering the special offer.

The first bottle is at £45. The second is half price so, £45÷2= £22.50

Add the two together: £45 + £22.50= £67.50

Continue as normal, with the price divided by the amount:

£67.50÷100= 0.675

Now, the price of the first bottle per ml was 0.6875. The price for the second bottles was 0.675 altogether. The smaller number is the cheapest price, meaning it is the best buy. 0.675 is smaller than 0.6875

So, the two 50ml bottles are the better buy.

(The answer Reiny gave was correct but I thought it would be better to give reasons for each step to avoid confusion)

It was right so lit

Thanks for this answer

xzx

no you are all wrong

that answer gave 2/3 marks. is there something missing?

thanks Foster it was correct

unit price £55 80 ml = 68.75 cents ml
unit price = £67.50/100 = 67.50 cents/ml
£67.50÷100= 0.675
the two 50ml bottles are the best value for money.

copy and paste that on m4ths w4tch

was correct thank you :)

You need to add a better conclusion and show the working. Thank you I sat there for two hours until I found ur answer. XX

*lowers defence and special defence*

80ml = £62.50 or 0.78125p/ml
100ml =£75 or 0.75p/ml
Therefore the two 50ml bottles are better value for money than the 80ml bottle

thank u jo that works very well