Question

2. In a class there are 30 boys and 12 girls. Find the ratio of number of boys to number of girls​

Answer 1

Answer:

5:2

Step-by-step explanation:

So how you actually do this is like this:

30:12

now think of a number that you can divide with both of them

now there are few ans: 2,3,6

and now divide it with the maximum onw (6)

and you get 5:2

Answer 2

The ratio of number of boys to number of girls = 5 : 2

Given :

In a class there are 30 boys and 12 girls

To find :

The ratio of number of boys to number of girls

Concept :

Ratio : Ratio means comparing of two quantities

The ratio of a number a to another number b ( where b ≠ 0) is a fraction a/b and it is written a : b , the first term a is called antecedent and the second term is called consequent

Solution :

Step 1 of 2 :

Write down of number of boys and number of girls

Here it is given that in a class there are 30 boys and 12 girls

Number of boys = 30

Number of girls = 12

Step 2 of 2 :

Calculate the ratio

Hence the ratio of number of boys to number of girls

$\displaystyle \sf{ = 30 : 12 }$

$\displaystyle \sf{ = \frac{30}{12} }$

$\displaystyle \sf{ = \frac{30 \div 6}{12 \div 6} }$

$\displaystyle \sf{ = \frac{5}{2} }$

$\displaystyle \sf{ = 5 : 2 }$

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