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For what value of m the following system...

For what value of m the following system of equations will have a unique solution ? `3x+my=10" and "9x+12y=30`

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BEYOND PUBLICATION-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-EXERCISE
  1. For what value of m the following system of equations will have a uniq...

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  2. By comparing the ratios (a1)/(a2),(b1)/(b2),(c1)/(c2), find out whethe...

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  3. By comparing the ratios (a1)/(a2),(b1)/(b2),(c1)/(c2), find out whethe...

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  4. By comparing the ratios (a1)/(a2),(b1)/(b2),(c1)/(c2), find out whethe...

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  5. By comparing the ratios (a1)/(a2),(b1)/(b2),(c1)/(c2), find out whethe...

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  6. By comparing the ratios a1/a2,b1/b2,c1/c2 and without drawing graphs, ...

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  7. By comparing the ratios a1/a2,b1/b2,c1/c2 and without drawing graphs, ...

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  8. By comparing the ratios a1/a2,b1/b2,c1/c2 and without drawing graphs, ...

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  9. Check whether the following equations are consistent or inconsistent. ...

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  10. Check whether the following equations are consistent or inconsistent. ...

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  11. Check whether the following equations are consistent or inconsistent. ...

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  12. Check whether the following equations are consistent or inconsistent. ...

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  13. Check whether the following equations are consistent or inconsistent. ...

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  14. Check whether the following equations are consistent or inconsistent. ...

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  15. 80 students of class -X took part in a picnic. If the number of boys i...

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  16. The cost of 7 oranges and 10 apples is Rs 192 whereas the cost of same...

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  17. The area of a rectangle gets reduced by 9 square units, if it length ...

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  18. In class VIII, if five students sit one each bench, one student will b...

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  19. A man buys stamps of denominations Rs 5 and Rs 10 for Rs 340. He buys ...

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  20. 850 persons went to see a circus-show. Each adult paid Rs 25 and each ...

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  21. The ratio of incomes of two persons is 8:7 and the ratio of their expe...

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