Question

Three electric cars are carrying 79 people. In the first car, there are 17 more people than in the second and 15 less than the third. How many people in each car?

Answer 1

• Number of people in the first car=27
• Number of people in the second car =10
• Number of people in the third car =42

Explanation:

• Let the number of people in the first car =x

In the first car, there are 17 more people than in the second

• Therefore, Number of people in the second car =x-17

In the first car, there are 15 less people than the third.

• Therefore, Number of people in the third car =x+15

The three cars carry a total of 79 people.

Therefore:

x+(x-17)+(x+15)=79

3x-2=79

3x=79+2

3x=81

x=27

Therefore:

Number of people in the first car=27

Number of people in the second car =27-17=10

Number of people in the third car =27+15=42