A steel plant is capable of producing x tonnes per day of a law-grade steel and y tonnes per day of a hight-grade steel, where $y=\frac{40-5x}{10-x}$. If the fixed market price of low-grade steel is half that of high-grade steel, then what should be optimal productions in law-grade steel and high-grade steel in order to have maximum receipts.Solution in Tamil

Find the inverse of $\left[\begin{array}{cc}2& -1\\ 5& -2\end{array}\right]$ by Gauss Jorden method.

Four defective oranges are accidentally mixed with sixteen good ones . Two oranges are drawn at random from the mixed lot. If the random variable X denotes the number of defective oranges then find the values of X and number of points in its iverse image.

Find the condition on a, b and c so that the following system of linear equations has one parameter family of solutions: x + y + z = a, x + 2y + 3z = b, 3x + 5y + 7z = c.

A tyre company is able to manufacture x (hundred) grade A tyres and y (hundred) grade B tyres per day,where y(5-x)=10(4-X),0<=x<=4. If the profit oneach grade A tyre is twice the profit on grade B tyre,what is the most profitable number of grade A tyresper day to manufacture?

Mr. Dupont is a professional tea taster. When given a high grade tea, he will identify it with probability 0.9 correctly as high grade and will mistake it for a low grade tea with probability 0.1. When given a low grade tea, he will identify it with probability 0.8 correctly as low grade tea and will mistake it for a high grade tea with probability 0.2. Suppose that Mr. Dupont is given ten unlabelled cups of tea, three with high grade and sevenwith low grade tea. He randomly picks a cup, tries the tea and solemnly says high grade tea. Find the probability that the tea he tasted was low grade tea.

If we touch a piece of steel and wood on a winter day we feel that the steel is colder than wood .if we touch the steel and the wood on summer day we feel that steel is hotter than wood why?

एक तेल कम्पनी को कम-से-कम 13000, 20000 और 15000 बैरेल क्रमशः उच्च कोटि माध्यम कोटि और निम्न कोटि के तेल की आवश्यकता है तेल शोधक A प्रतिदिन क्रमशः 100, 300 एवं 200 बैरल उच्च कोटि माध्यम कोटि और निम्न कोटि का तेल उत्पादित करता है जबकि तेल शोधक B प्रतिदिन क्रमशः 200, 400 और 100 उत्पादित करता है यदि A को चलाने में 400 रू प्रतिदिन और B को चलाने में 300 रू प्रतिदिन खर्च पड़ता है तो कितने दिनों के लिए प्रत्येक को चलाना होगा ताकि आवश्यक खर्च न्यूनतम हो ?

A steel plant is capable of producing x tonnes per day of a law-grade steel and y tonnes per day of a hight-grade steel, where $y=\frac{40-5x}{10-x}$. If the fixed market price of low-grade steel is half that of high-grade steel, then what should be optimal productions in law-grade steel and high-grade steel in order to have maximum receipts.

Define High grade energy. Give some of the examples of High grade energy.

Define Low grade energy. Give some of the examples of Low grade energy.

At the beginning of a month ,a factory has enough materials to make 240 tonnes of steel in a month.If 60 more tonnes of steel is to be made that month.how long will the materilas last?

குதிரை லாட வடிவ ஸ்டீல் காணப்படும் பகுதி:

ஒரு எஃகு ஆலை ஒரு நாளைக்கு குறைந்த தர எஃகு x டன்னும் மற்றும் உயர்தர எஃகு y டன்னும் உற்பத்தி செய்யும் திறன் கொண்டது. இங்கு y=$\left(\frac{40-5x}{10-x}\right)$ குறைந்த தர எஃகின் சந்தை விலை உயர்தர எஃகின் சந்தை விலையில் பாதி என்றால், அதிக பண வரவைப் பெறுவதற்கு குறைந்த தர எஃகு மற்றும் உயர்தர எஃகு ஆகியவற்றின் உகந்த உற்பத்திகள் என்னவாக இருக்க வேண்டும்?

A oil company requires 12000, 20000 and 15000 barrels of high grade, medium grade and low grade oil respectively. Refinery A produces 100, 300 and 200 barrels per day of high, medium and low grade oil respectively whereas the refinery B produces 200, 400 and 100 barrels per day respectively. If A costs 400 per day and B cost 300 per day to operate. To find how many days should each be run to minimize the cost of requirement, formulate this as a L.P.P.

State the reasons for
Use of graphite -as a lining for crucibles used in manufacture of high grade steel

An oil company requires 12,000, 20,000 and 15,000 barrels of high-grade, medium grade and low grade oil, respectively. Refinery A produces 100, 300 and 200 barrels per day of high grade, medium grade and low grade, respectively, while refinery B produces 200,400 and 100 barrels per day of high-grade, medium grade and low grade, respectively. If refinery A costs Rs 400 per day and refinery B costs Rs 300 per day to operate, how many days should each be run to minimize costs while satisfying requirements.