Question

if 4 kg of coffee cost as much as 3 kg of tea and 5 kg of tea as much as 10 kg of sugar ,what is the price of each when 1 kg of tea ,1 kg of coffee and 1 kg of sugar together cost rs 112.50​

Answer 1

Answer:

66.7 - 9.2y + 8.8y = 65.30

-9.2y + 8.8y = 65.30 - 66.7

-.4y = -1.4

y = $3.50 original cost of the coffee

:

Then: 1.1 * 3.50 = $3.85 new cost of the coffee

:

:

Find original cost of the tea

5x + 8(3.5) = 58

5x + 28 = 58

5x = 58 - 28

x = 30/5

x = $6.00 original cost of the tea

:

Then: 1.15 * 6 = $6.90 new cost of the tea