Question

A ball and a bat cost £90 in total. Three balls and two bats cost £210 in total. How much does a bat cost?

Answer 1

Answer:

cost of bat is 60

Step-by-step explanation:

cost of ball =x

cost of bat = y

there fore equation I is

x + y = 90

and

equation II is

3 x + 2 y =210

By multiplying by 3 to equation I both sides

we get equation III as

3( x + y) = 3 ( 90 )

3x + 3y =270 equ III

By substrating equation II from equation III

we get 3x+3y=270

- 3x+2y=210

--------------------------

0+y= 60

y =60

cost of bat is y ie = 60

and cost of ball ,is

let put value of y in equation I

x+60=90

x=90-60

x=30

cost of ball is 30