Question

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Answer 1

$\huge\mathbb\red{ANSWER}$

given

number of students = 150

nunmber of girls is 2/5

number of girls =

$\frac{2}{5} of150$

$\frac{2}{5} \times 150 \\ \\ number \: of \: girls \: = 60$

then number of boys

150 - number of girls

150 - 60 = number of boys

90 = number of boys

$\huge\mathscr\green{EXPLANATION}$

• here 1st we have to find number of girls

• to find it we have multiply 2/5 and 150

• once we get number of girls we substract the number form girls from 150

hope it helps you

be brainly

Answer 2

$\red \bigstar \: question$

There are 150 students in class and 2/5 of the students are girls . find the number of boys in class .

$\green \bigcirc \: answer$

Number of boys are 90

$solution \bigstar$

Given :

• total students => 150
• 2/5 of them(total) is girls

Find :- number of boys ___

Now ,

here total number number of students = number of boys + number of girls

Means (number of boys + number of girls)=150

➡ if 2/5 of them (total ) is girls then,

$\frac{2}{5} \times 150 = 60$

total girls = 60

➡ number of boys = total number of students - number of girls

$150 - 60 = 90$

Hence ,

number of boys = 90