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प्रश्न
Find the value of: `(8! + 5(4!))/(4! - 12)`
उत्तर
`(8! + 5(4!))/(4! - 12)`
= `(8! + 5!)/(4xx3xx2-12)`
= `(8 xx 7 xx 6 xx 5! + 5!)/(4xx3xx(2-1))`
= `(5!(8xx7xx6+1))/(4xx3)`
= `(5xx4xx3xx2xx1(336+1))/(4xx3)`
= 5 × 2 × 337
= 3370
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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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