Adam runs a restaurant and is at the wholesalers buying supplies.
7 kg of carrots and 5kg of onions cost a total of 480p
The cost of 1 kg of carrots: cost of 1 kg of onions = 5: 9
Work out how much it will cost Adam to buy 1kg of carrots and 1kg of onions.
Answer:
The ratio of the cost of carrots (c) to the cost of onions (t) is 5:9
so therefore 9c = 5t
so t = 9/5c
Also, 7c plus 5t = 480p
so then substitute in the price of 7c + 5(5/9c) = 480
so 7c + 9c =480 so 16c = 480 so c = 30
so t = (9/5) x 30 = 54
so therefore 30 + 54 = 84p