Question

Initially, the ratio of Alex’s toy cars to Pete’s toy cars was 7:3. After Alex gave 20 toy cars to Pete, they had each an equal number of cars. How many toy cars did they have altogether?

Answer 1

Answer:

100

Step-by-step explanation:

Alex has: 7x

Pete has: 3x

• 7x-20=3x+20
• 4x=40
• x=10

Alex--- 7*10=70

Pete --- 3*10=30

Total --- 70+30=100

Answer 2

Let the ratio be x

Alex's toys car=7x

pete's car ratio=3x

Now,

alex gave 20 toy car to pete and they had equal number of cars

So,

7x-20=3x+20

-4x=-40

4x=40

x=10

Number of car alex have=7×10-20=50

Number of car pete have=3x=3×10+20=50

Hence,

Number of car they have altogether is 100