From the pair of linear equations in the following and problems, and find their solutions graphically.
10 students, of Class X took part in a Mathematics quiz. If the number of girs is 4 more than the number of boys, find the number of boys and girls who took part in the quiz.

Form the pair of linear equations in the following problems and find their solutions graphically. 10 students of class X took part 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.

Form the pair of linear equations in the following problems, and find their solutions. 10 students of Class X took part 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.

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

From the pair of linear equations for the following problems and find their solutions by substitution method. The largest of two supplementary angle exceeds the smaller by 18 degrees. Find them.

Form the pair of linear equations in the following problems, and find their solutions graphically. 5 pencils and 7pens together cost Rs 50 whereas 7 pencils and 5 pens together cost Rs46. Find the cost of one pencil and that of one pen.

From the pair of linear equations for the following problems and find their solution by substitution method. The larger of two supplementary angles exceeds the smaller by 18 degrees. Find them.

Form the pair of linear equations in the following problems and find their solutions 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 that of one pen.

From the pair of linear equations for the following problems and find their solution by substitution method. The difference between two numbers is 26, and one number is three times the other. Find them.

Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method : The sum of the digits of a two - digit number is 9. Also, nine times this numbers is twice the number obtained by reversing the order of the digits. Find the number.