Question

i'm being annoying as hell but The ratio of boys to girls in a group is 7:1. If there are 42 more boys than girls, work out how many girls there are.

Answer 1

Answer:

Let the ratio of boys to girls be 7x : x

A/q

7x = x + 42

=> 7x - x = 42

=> 6x = 42

=> x = 42/6

= 7

Now,

No. of girls = x = 7

No. of boys = 7x = 7×7 = 49

Ans....

Answer 2

Step-by-step explanation:

1. Let the no.of girls=x
2. The no. of boys =42+x

a/c,

$\frac{42 + x}{x} = \frac{7}{1}$

$42 + x = 7x$

$42 = 6x$

$x = 7$

so, no.of girls = 7

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