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A coaching institute of English (subject...

A coaching institute of English (subject) conducts classes in two batches I and II and fees for rich and poor children are different. In batch I, it has 20 poor and 5 rich children and total monthly collection is Rs. 9,000, whereas in batch II, it has 5 poor and 25 rich children and total monthly collection is Rs. 26,000. Using matrix method, find monthly fees paid by each child of two types. What values the coaching institute is inculcating in the society ?

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To solve the problem using the matrix method, we will follow these steps: ### Step 1: Define Variables Let: - \( X \) = Monthly fee paid by poor children - \( Y \) = Monthly fee paid by rich children ### Step 2: Formulate the Equations ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions
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  2. Find the values of a and b , if the function f defined by f(x)={x^2...

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  3. A coaching institute of English (subject) conducts classes in two batc...

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  4. If 213(-1 0-1-1 1 0 0 1 1)(1 0-1)=A , then write the order of matrix A...

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  5. If A=(3 5 7 9) is written as A = P + Q, where P is a symmetric matrix ...

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  6. If |[x,si ntheta,costheta],[-si ntheta,-x,1],[costheta,1 ,x]|=8, writ...

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  7. If | vec a X vec b|^2+| vec adot vec b|^2=400 and | vec a|=5, then wri...

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  8. If vec a , vec b , vec c are unit vectors such that vec a+ vec b+ ve...

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  9. Write the equation of a plane which is at a distance of 5sqrt(3) units...

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  10. Using integration find the area of the region bounded by the curves y=...

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  11. If f,g:R->R be two functions defined as f(x)=|x|+x and g(x)=|x|-x. Fi...

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  12. In order to supplement daily diet, a person wishes to take X and Y ...

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  13. Bag A contains 3 red and 5 black balls, while bag B contains 4 red and...

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  14. Find the equation of the plane which contains the line of intersection...

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  15. Solve for x : tan^(-1)((x-2)/(x-1))+tan^(-1)((x+2)/(x+1))=pi/4

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  16. Prove that: cot^(-1)((sqrt(1+sinx)+sqrt(1-sinx))/(sqrt(1+sinx)-sqrt(1-...

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  17. Evaluate: int((x^2+1)(x^2+4))/((x^2+3)(x^2-5))\ dx

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  18. Find : int(2x+5)sqrt(10-4x-3x^2)dx

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  19. Find the equation of tangents to the curve y=cos(x+y),-2pilt=xlt=2pi t...

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  20. Prove that the line through A(0,1,1) and B(4,5,1) intersects the line ...

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