A man buys milk at ₹8.5 per litre and dilutes it with water. he sells the mixture at same rate and thus gains 11.11%. find the quantity of water mixed by him in every litre of milk.
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S.P = 8.5
P = 11.11% = 100/9 %
S.P = (1 + P/100)*C.P
8.5 = (1 + 1/9)*C.P
8.5*9/10 = C.P
>> C.P = 7.65
For 8.5 Man Buys 1 Lt
For 1 Man Buys 1/8.5 Lt
For 7.65 Man Buys 7.65/8.5 Lt = 0.9 Lt
But he sells this as 1 litre
>> Amount of water mixed = 1 - 0.9 = 0.1 Lt
S.P = 8.5
P = 11.11% = 100/9 %
S.P = (1 + P/100)*C.P
8.5 = (1 + 1/9)*C.P
8.5*9/10 = C.P
>> C.P = 7.65
For 8.5 Man Buys 1 Lt
For 1 Man Buys 1/8.5 Lt
For 7.65 Man Buys 7.65/8.5 Lt = 0.9 Lt
But he sells this as 1 litre
>> Amount of water mixed = 1 - 0.9 = 0.1 Lt
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