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It is already in its simplest ratio because 17 is a Prime number but if it were 7 boys to 21 girls then the ratio would be 1 to 3
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Earn +20 ptsQ: What is the ratio for 17 boys to 21 girls?
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Continue Learning about Math & Arithmetic
How many letters can a first grader copy per minute?
Girls - 21 letters/minute Boys - 17 letters/minute
In a class of 21 students the ratio of boys to girls is 4 to 3 Three extra boys and one extra girls join the class What is the new ratio of boys to girls?
B/G = 4/3 so 3B = 4G B+G = 21 Multiply by 3: 3B+3G = 63 But 3B = 4G so 4G+3G = 63 ie 7G = 63 so that G = 9 So B+G=21 means B = 12 3 more boys so B' = 12+3 = 15 1 more girl so G' = 9+1 = 10 So new ratio = B'/G' = 15/10 = 3/2 or 3 to 2
A ceramics class has 75 percent girls and 25 percent boys.There are 21 girls in the class. How many boys are there in the class?
7 boys
What is the probability that a teacher will pick a boy out of 21 students 9 girls and 12 boys?
12/21 or 4/7
What is the ratio of 105 to 85?
Oh, dude, the ratio of 105 to 85 is 21:17. It's like dividing both numbers by their greatest common factor, which in this case is 5. But hey, who's counting, right?
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