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विषय
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अध्याय
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Mathematics
A man has 9 friends. 4 boys and 5 girls. In how many ways can he invite them if there have to be exactly 3 girls in the invitee's list?
Chapter: [1] Quantitative Techniques
Concept: Permutation and Combination (Entrance Exam)
Concept: Permutation and Combination (Entrance Exam)
Choose the most appropriate option:
A library has an average of 510 VIS1tors on Sunday and 240 on the other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is
Chapter: [1] Quantitative Techniques
Concept: Average and Age
Concept: Average and Age
