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Georgia [21]
3 years ago
14

In Scarlett's grade, 1/5 of the students have a sister. Of the students who have a sister, 1/4 also have a brother. What fractio

n of the students in Scarlett's grade have both a sister and a brother?
Mathematics
1 answer:
My name is Ann [436]3 years ago
3 0

Answer:

1/20

Step-by-step explanation:

In Scarlette grade 1/5 of the students have a sister.

Of the students who have a sister 1/4 also have a brother

Therefore fraction if students in Scarlet's grade who had both brothers and sister can be calculated as follows

= 1/5 ×1/4

= 1/20

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