Question

If ratio of the boys and girls is 2:3 in a school and
number of boys is 800, then the number of girls
is
A
1200
B 400
C 300
→
D None of these​

Answer 1

Answer:

A) 1200 this is the answer

Answer 2

$\sf \large \red{\underline{ Question:-}}$

• If ratio of the boys and girls is 2:3 in a school and number of boys is 800, then the number of girls is ( A ) 1200 , ( B )400 ,( C ) 300, ( D ) None of these

$\sf \large \red{\underline{Given:-}}$

• ratio of the boys and girls is 2:3.

$\sf \large \red{\underline{To \: Find:-}}$

• Number of boys is 800

$\sf \large \red{\underline{Solution :- }}$

$\bf \: supposed :- \\ \\ \sf boy = 2x \\ \sf \: girl \: = 3x$

$\sf \underline{ \red{sum \: of \: ratio \: of \: number \: of \: boys \: and \: girls \: = 5x}}$

$\sf \underline{according \: to \: the \: question : }$

$\sf \to \: boys \: = 800 \\ \\ \sf \to \: 2x = 800\\ \\ \sf \to \: x = \frac{800}{2} \\ \\ \sf \to \: x = 400$

$\sf \to \: girls \: number = 3x \\ \\ \sf \red{ \underline{putting \: the \: value \: of \: x }}\\ \\ \sf \to \: girls \: number = 3 \times 400 \\ \\ \sf \to \: girls \: number = 1200$

$\sf \underline{ \dag \: \: \red{hence \: the \: girls \: number \: is \: 1200}}$