Question

Numbers of boys in a class is 5 more than number of girls. When 5 more boys joined the class. Number of boys is double that of girls. Find the numbers of boys and girls​

Answer 1

Given :

• Numbers of boys in a class is 5 more than number of girls.
• When 5 more boys joined the class, the number of boys is double that of girls.

To Find :

• the numbers of boys and girls.

Solution :

Let the number of girls be x.

Then, number of boys = x + 5.

When 5 more boys joined the class,

Number of boys = x + 5 + 5 = x + 10

ATQ,

➪ x + 10 = 2 × x

➪ x + 10 = 2x

➪ x - 2x = -10

➪ -x = -10

➪ x = 10

Hence,

• Number of girls = 10.
• Number of boys = 10 + 10 = 20.

Answer 2

Answer:

girls=10

boy=20

Step-by-step explanation:

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