Question

8. The number of boys and girls in a school are 450 and 300 respectively. Express the ratio of
(a) the number of boys to that of girls

answer plz​

Answer 1

Answer:

Ratio of boys and girls

= 450 : 300

= 45 : 30

= 3 : 2

Answer 2

$\Large\sf\underbrace{Question:}$

The number of boys and girls in a school are 450 and 300 respectively. Express the ratio of:-

(a) the number of boys to that of girls.

$\sf\Large{\underline{\underline{Answer:-}}}$

Given,

Number of boys in a school = 450

Number of girls in a school = 300

Finding,

• Ratio of boys to that of girls,

$\begin{gathered}\\\;\sf{:\rightarrow\;\;Ratio\;=\;\bf{\dfrac{450}{300}\:}}\end{gathered}$

$\Longrightarrow$ $\sf{\cancel\dfrac{450}{300}}$ = $\sf{\cancel\dfrac{3}{2}}$ = 3 : 2

∴ The Ratio of boys to that of girls is 3:2.

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$\boxed{\fcolorbox{orange}{green}{ADDITIONAL-INFORMATION}}$

Ratio:-

✦ Comparing two quantities of a same kind or unit by division is called ratio.

✦ It has no unit

✦ Quantities / numbers compared in a ratio are called 'terms' of a ratio.

✦ The symbol ':' is used to express ratio. Eg. a:b ( read as a is to b)

✦ Where, a and b are called terms of the ratio.

✦ First term of a ratio is called antecedent and second term is called consequent.

✦ Order of terms in a ratio is very important, i.e. a:b is not same as b:a.