Question

Hospital uses a mixture of salt and water at rs. 7.62/litre. This mixture contains 5 % salt. Another mixture containing 75 % water costs rs. 7.82/litre. How much does the patient pay if he buys 5 litres of mixture containing 18% salt

Answer 1

The price of 5 liters of mixture is 38.75 Rs

Step-by-step explanation:

Given data:

• 1st mixture contains 5 % salt.
• 2nd mixture contains 75 % water i.e. 25 % salt.

Solution:

Required % of salt = 18 %.

Required ratio = 25 – 18 : 18 – 5 = 7 : 13

Required price of the mixture = 7.82 – x : x – 7.62 = 7 : 13

x = 7.75/ liter.

Price of 5 liters of mixture = 7.75 x 5 = Rs. 38.75

Hence the price of 5 liters of mixture is 38.75 Rs.

Also learn more

Coffee costing rs. 250 per kg was mixed with chicory costing Rs.75 per kg in the ratio 5:2 for a certain blend.if the mixture was sold at Rs .230 per kg find the gain or loss percent. ?

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