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In a class, there are 30 boys and 18 girls. The teacher wants to select one boy and one girl to represent the class for quiz competition. In how many ways can the teacher make this selection?
- a)625
- b)125
- c)25
- d)540
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
In a class, there are 30 boys and 18 girls. The teacher wants to selec...
Out of 30 Boys,
No. of ways to select 1 boy = 30C1 = 30
Out of 18 Girls,
No. of ways to select 1 boy = 18C1 = 18
No. of ways of selecting 1 boy and 1 girl =
30*18 = 540
No. of ways to select 1 boy = 30C1 = 30
Out of 18 Girls,
No. of ways to select 1 boy = 18C1 = 18
No. of ways of selecting 1 boy and 1 girl =
30*18 = 540
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In a class, there are 30 boys and 18 girls. The teacher wants to select one boy and one girl torepresent the class for quiz competition. In how many ways can the teacher make this selection?a)625b)125c)25d)540Correct answer is option 'D'. Can you explain this answer?
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