a sports teacher has to spend RS1300 when he purchases 10 footballs and 20 hockey sticks from a shop. however if he purchases 15 footballs and 15 hockey sticks the amount spent is rs 1350. find the cost per football and hoockey stick Share with your friends Share 4 Tanveer Sofi answered this Let Rs x be the cost per football and Rs y be the cost per hockey.When the teacher purchases 10 footballs and 20 hockey sticks for Rs 1300. We can write10x+20y=1300 ........1When the teacher purchases 15 footballs and 15 hockey sticks for Rs 1350.We can write15x+15y=1350⇒x+y=135015 dividing both sides by 15⇒x+y=90 ...........2substituting, y=90-x from equation 2 into the equation 1, we get10x+2090-x=1300⇒10x+1800-20x=1300⇒-10x+1800=1300⇒-10x=1300-1800 Subtracting 1800 from both sides⇒-10x=-500 ⇒x=-500-10 Dividing both sides by -10⇒x=50.Putting x=50 in the equation 2, we gety=90-x=90-50=40.Hence, the cost per football is Rs 50 and the cost per hockey stick is Rs 40. 2 View Full Answer Adfa Bakhtiar answered this plz solve it by substitution method -1 Adfa Bakhtiar answered this no links plzz -1
