Question

In a class the ratio of boys to the girl's is 7:8 what part of the whole class are girls

Answer 1

Step-by-step explanation:

ANSWER:-

Given:-

• Ratio of boys:girls as 7:8
• Let the total Ratio constant be x.
• So, the ratio of boys are 7x
• And girls are 8x.

Concept:-

• Ratio and Proportion

$\sf{7x+8x = Total}$

$\sf{15x = Total}$

$\sf{Total = 15x}$

$\sf{Girls = 8x}$

Whole part of Girls =

$\sf{\dfrac{8}{15}}$

So, 8/15 is the required answer.

What if of boys?

$\sf{Total = 15x}$

$\sf{Boys = 7x}$

Whole part in comparison to boys=

$\sf{\dfrac{7}{15}}$

Answer 2

$\huge \purple A \purple N \purple s \purple W \purple e \purple \R : -$

Ratio between boys and girls = 7:8

Sum of ratios = 7 + 8 = 15

Therefore , girls are 8/15 of whole class ..