Question

Peter bought 25 balls of two kinds. Each cost $2 and $3 respectively. When he paid $ 60 for them, he got $2 in change. How many of each kind of balls did he buy?

Answer 1

Answer:

Step-by-step explanation:

Let the number of $2 ball be x, number of $3 ball be 25-x

2x+(25-x)3 = 60-2

2x+75-3x=58

x=17

Number of $2 ball =17

Number of $3 ball =8

Answer 2

Answer:

Given : Peter bought : 25 ball of 2 kinds

1 : $2 and 2 : $3 total was $ 60 and got

$2 back

To find out : Each kind of did he buy ?

Solution : $ 60 - $ 2 = 58

= 17 × 2 ; 8 × 3

= 34 = 24

= 34 + 24

= $ 58