How many kilograms of tea at \[50\] per kg should be mixed with \[35\,\,kg\] of tea costing \[Rs.\,\,60\] per kg so as to sell the mixture at \[Rs.\,\,57\] per kg without gaining or losing anything in the transaction?

How many kilograms of tea at \[50\] per kg should be mixed with \[35\,

1.	How many kilograms of tea at \[50\] per kg should be mixed with \[35\,\,kg\] of tea costing \[Rs.\,\,60\] per kg so as to sell the mixture at \[Rs.\,\,57\] per kg without gaining or losing anything in the transaction?
A.	\[5\,\,kg\]
B.	\[7\,\,kg\]
C.	\[25\,\,kg\]
D.	\[15\,\,kg\]
Answer» E.

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How many kilograms of tea at \[50\] per kg should be mixed with \[35\,\,kg\] of tea costing \[Rs.\,\,60\] per kg so as to sell the mixture at \[Rs.\,\,57\] per kg without gaining or losing anything in the transaction?

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