Question

1. Form the pair of linear equations in the following problems, and find their solutions
graphically.
(1) 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
(ii) 5 pencils and 7 pens together cost * 50, whereas 7 pencils and 5 pens together
cost 46. Find the cost of one pencil and that of one pen. .. can someone pls answer to this one​

Answer 1

Answer

boys :-x ,girls :-4x

x+4x=10

5x= 10

x = 10/5

x=2

Answer 2

x=2 is your correct answer