Question

1 cup of tea and 4 slices of cake coast 9.00
1 cup of tea and 1 slice of cake coast 2.70
what is the amount of one tea

Answer 1

Answer:

1 cup of tea costs Rs. 0.6

Step-by-step explanation:

let the value of 1 cup tea be 'x'

and value of 1 slice cake be 'y'

according to given question:

x+4y=9 and x+y=2.70

as we need to find the value of 'x' we need to cancel out the cost of slice

so we multiply th second equation by 4

we get,

4x+4y=10.8

- ( x+4y=9)

solving the equation we get....

answer as Rs. 0.6

hope it helps......

Answer 2

Answer:

0.60

Step by Step explanation:

4 slices of cake and 1 cup of tea ="9.00"

1 cup of tea=9.00—4 slices of cake

1 cup of tea=9.00-8.4

1 cup of tea=0.60