Question

Heather has red and green pens in her stationery cupboard. the ratio of green pens to the total number of pens is 4:11

what fraction of heathers pens are green
what is the ratio of green pens to red pens
heather has 56 red pens. how many green pens does she have

Answer 1

Explanation:

Pen colors given = Red and green

Ratio;

Green pen : Total pen

4 : 11

Solution:

1. what fraction of heathers pens are green;

Fraction =
`(green pen)/(total pen)` =
`(4)/(11)`

2. Ratio of green pens to red pens:

let the multiples = x

Green pen Red pen Total pen

4x ? 11x

Red pen = 11x - 4x = 7x

Ratio of green pen to red pen:

4 : 7

3. heather has 56 red pens. how many green pens does she have

Number of red pen = 56;

Number of green pens = ?

Since the ratio is;

4 : 7

Number of green pen =
`(56 x 4)/(7)` = 32