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Form the pair of linear equations in the following problem, and find the solution graphically: 5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and 5 pens together cost Rs 46. Find the cost of one pencil and a pen.

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Form the pair of linear equations in the following problems, and find their solutions graphically. 5 pencils and 7 pents together cost Rs 50, whereas 7 pencils and 5 pens together cost Rs 46. Find the cost of one pencil and that of one pen.

5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and S pens together cost Rs 46. Find the cost of one pencil and that of one pen.

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3 bags and 4 pens together cost Rs 257 whereas 4 bags and 3 pens together cost Rs324. Find the total cost of 1 bag and 10 pens.

5 books and 7 pens together cost Rs 434, whereas 7 books and 5 pens together cost Rs 550, find the total cost of 1 book and 2 pens.

37pens and 53 pencils together cost Rs.320 , while 53 pens and 37 pencils together cost Rs ,400 .Find the cost of a pen and that of a pencil.

37 pens and 53 pencils together cost ₹ 955, while 53 pens and 37 pencil together cost ₹ 1115. Find the cost of a pen and that of a pencil.

Form the pair of linear equations in the following problems, and find their solutions graphically. (i) 10 students of Class X took pan in a Mathematics quiz. If the number of girls is 4 more than the number of boys, find the number of boys and girls who took part in the quiz. (ii) 5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and 5 pens together cost Rs 46. Find the cost of one pencil and that of one pen.

3 pencils and 4 pens cost Rs. 270 while 4 pencils and 3 pens cost Rs. 150 . Find the combined cost of one pencil and one pen.

RD SHARMA-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-All Questions
  1. Draw the graphs of the equations 5x-y=5 and 3x-y=3 . Determine the ...

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  2. Form the pair of linear equations in the following problem, and fin...

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  3. Form the pair of linear equations in the following problem, and fin...

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  4. Form the pair of linear equations in the following problem, and fin...

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  5. Solve the following system of equations graphically: 3x-4y=7,\ \ \...

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  6. Solve the following system of equations graphically: 4x-y=4,\ \ \ 3...

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  7. Represent the following pair of equations graphically and write the...

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  8. Given the linear equation 2x+3y-8=0 , write another linear equat...

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  9. Solve the following system of equations by using the method of subs...

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  10. Solve the following system of equations by using the method of subs...

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  11. Solve the following system of equations by using the method of subs...

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  12. Solve the following system of equations by using the method of subst...

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  13. Solve the following system of equations by using the method of elim...

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  14. Solve the following system of equations by using the method of elim...

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  15. Solve: 2/x+2/(3y)=1/6 and 3/x+2/y=0 and hence find ' a ' for which y=a...

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  16. Solve the following system of equations: 8v-3u=5u v ,\ \ \ 6v-5u=-2...

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  17. Solve: 5/(x+y)-2/(x-y)=-1,\ \ \ (15)/(x+y)+7/(x-y)=10 , where x+y!=0 a...

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  18. Solve: 37 x+41 y=70 ,\ \ \ 41 x+37 y=86

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  19. Solve: 2x-y=4,\ \ \ y-z=6,\ \ \ x-z=10

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  20. Solve the following system of equations: 11 x+15 y+23=0,\ \ \ 7x-2y...

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