Simon and Kim drink a lot of tea and water when they are at work. Each day Simon drinks one more cup of tea than cups of water.Each day Kim drinks twice as many cups of tea as cups of water.They work for 10 days during a fortnight and drink a total of 140cups of tea and 90cups of water each day, how many cups of tea each day and the same number of cups of water each day, how many cups of tea does Simon drink each day and how many cups of tea does Kim drink each day?

1 answer

Simon:
cups of water --- x per day
cups of tea ------ x+1 per day

Kim:
cups of water --- y per day
cups of tea ----- 2y per day

".. drink a total of 140cups of tea and 90cups of water each day" ? each day?? , not reasonable!
did you mean for the 10 days?

If for 10 days:
10(x+y) = 90
x+y = 9

10(x+1) + 10(2y) = 140
x+1 + 2y = 14
x + 2y = 13

subtract them:
y = 4
then x = 5

state your conclusion
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