Mr and Mrs X live in a house with 7 children's. The rate of male to female is 1:2. Find the probability that the children are either boy or girl
gamingtech06:
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9 children ah???
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total are 9. i think 3males and 6females.The ratio is 1:2. 7children+mr and mrs x makes 9 (7+2). 1x+2x=3x=9.
x=9÷3=3.
1x=3
2x=3×2=6.
HOPE IT WAS HELPFUL
x=9÷3=3.
1x=3
2x=3×2=6.
HOPE IT WAS HELPFUL
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