You need to win 30 matches in a row to raise its winning percentage to 90%
Answer:
square root of 167281 is 409
Here's the Step-by-step explanation using division:
The possibilities are:
bbbb
bbbg
bbgg
bggg
This shows that there is a 1 in 4 chance of having three boys and one girl
So the answer could be 1/4 or a 25% chance