Latest Exam Aptitude Question SOLUTION: An oil refinery takes 100 litres of crude oil as input and after refining for 1 hour gives certain amount of output oil X litres. This can be sold in the market at a profit of Rs 3

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(#M40039583) EXAM Numerical Ability question mixtures Keep an EYE

An oil refinery takes 100 litres of crude oil as input and after refining for 1 hour gives certain amount of output oil X litres. This can be sold in the market at a profit of Rs 30 per litre. If this oil is further refined for 1/2 hour it gives oil Y litres. This can be sold at a profit of Rs. 50 per litre. Output and input ratio at both the stages is 90%. The maximum amount that can be earned from 1000 litres of crude input is
(a) Rs. 30,000
(b) Rs. 27,000
(c) Rs. 40,000
(d) Rs. 40,500

Asked In Exam sai kiran (9 years ago)

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Narasapu Hari prasad  (9 years ago)

Ans is 40500
first take 100 liters refine it for 1 hour as output it gives 90 liters output
refine this oil again for half hour as a output it gives 90*90/100=81 literes
sold this 81 liters at a profit of 50 per liter 81*50=4050
this process repeates for 10 times as there is 1000 liters
so toatl profit=10*4050=40500.

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