Question

one of tea and one kg of sugar together cost Rs.95.if the price of tea falls by 10% and that of sugar rises by 20% then the price of one kg of each combined comes to Rs.90. the original price of tea in Rs per kg is ​

Answer 1

Answer:

Let cost of tea 1kg=x

and cost of sugar 1 kg=y

so... x+y=95..... [1]

when the price is changed,

price of tea=9x/10

price of sugar=12y/10=6y/9

(9x/10)+(6y/5)=90

it becomes, (9x+12y)/10=90

9x+12y=900... [2]

on solving it...

9x+9y=855... [1]

9x+12y=900.. [2]

on subtracting

y=15

x=80

Answer 2

Here it is the full answer with the most easy method.

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