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3 years ago

There are 40Student in a class. If the number of boys is 4less than the number of girls.find the number of boys.

Mathematics

1 answer:

svp [43]3 years ago

3 0

Answer:

Step-by-step explanation:

Let number of girls be 'x'.

So, Number of boys = Number of girls - 4

= x - 4

Total number of students in a class = 40

Number of girls + Number of boys = Total number of students in a class

$\longrightarrow$ x + x - 4 = 40

$\longrightarrow$ 2x - 4 = 40

$\longrightarrow$ 2x - 4 + 4 = 40 + 4

$\longrightarrow$ 2x = 44

$\longrightarrow$ $\sf \dfrac{2x}{2} = \dfrac{44}{2}$

$\longrightarrow$ x = 22

$\therefore$ Number of boys = 22 - 4

= 18

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4 years ago

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3 years ago

There are 40Student in a class. If the number of boys is 4less than the number of girls.find the number of boys.​

There are 40Student in a class. If the number of boys is 4less than the number of girls.find the number of boys.