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Form the pair of linear equations In the following problems and find their solutions (if they exist) by any algebraic method. :- Yash scored 40 marks in a test, getting 3 marks for each right answer and losing 1 mark for each wrong answer. Had 4 marks been awarded for each correct answer and 2 marks been deducted for each incorrect answer, then Yash would have scored 50 marks. How many questions were there in the test ?

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MBD-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-EXERCISE
  1. Form the pair of linear equations In the following problems and find t...

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  2. 4 chairs and 3 tables cost ? 2100 and 5 chairs and 2 tables cost ? 175...

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  3. Two years ago a father was five times as old as his son. Two years lat...

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  4. 9 pens and 5 pencils cost rs.154 and 13 pens and 7 pencils cost rs.222...

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  5. Ram says to his son, 5 years ago, I was 7 times as old as you were an...

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  6. Puneet Sharma starts his job in a school with a certain monthly salary...

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  7. Deepak buy 2 tickets from station A to station B and 3 from station A ...

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  8. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  9. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  10. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  11. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  12. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  13. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  14. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  15. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  16. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  17. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  18. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  19. On comparing the ratios (a1)/(a2), (b1)/(b2), (c1)/(c2) and without d...

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  20. Which of the following pairs of linear equations are consistent ? Obta...

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  21. Which of the following pairs of linear equations are consistent ? Obta...

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