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प्रश्न
Compute: `(8!)/(6! - 4!)`
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उत्तर
`(8!)/(6! - 4!)`
=` (8 xx 7 xx 6 xx 5 xx 4!)/(6 xx 5 xx 4! - 4!)`
= `(4!(8 xx 7 xx 6 xx 5))/(4!(6 xx 5- 1)`
= `(1680)/(29)`
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संबंधित प्रश्न
A teacher wants to select the class monitor in a class of 30 boys and 20 girls. In how many ways can he select a student if the monitor can be a boy or a girl?
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A question paper has 6 questions. How many ways does a student have if he wants to solve at least one question?
