Question:
A maths club has 40 members. The number of girls is 5 less than 2 times the number of boys. How many are boys? How many are girls?
Answer:
The number of girls in the maths club is 25
The number of boys in the maths club is 15
Explanation:
Given:
Total number of members in the maths club = 40 member
The Number of girls is 5 less than 2 times the number of boys
To Find:
Number of boys and girls = ?
Solution:
Let the number of boys be x
Then the number of girls = 2x - 5
Also we know that the total number of boys is
=> x+(2x-5) =40
=> 3x -5 = 40
=> 3x = 40 +5
=> 3x =45
=>
=> x = 15
Now the number of girls
=> 2(15)-5
=>30-5
=>25