Question

Find the quantity of tea costing rs 12per into be mixed with 18 kg of tea costing rs 9 per kgto form a mixture costing rs 10.2per kg

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

12

let the qty to be founded be x so equation is

(18*9+12x) / (18+x)= 10.2

solve this equation we get x=12