How-many-integers-between-100-999-inclusive-consist-of-distinct-odd-digit-

Question Number 178969 by Tawa11 last updated on 23/Oct/22

"How many integers between 100 – 999 inclusive consist of distinct odd digit"

Answered by Rasheed.Sindhi last updated on 23/Oct/22

N u m b e r o f o d d d i g i t s : 5

∙ O n e o f t h e t h r e e p o s i t i o n s c a n b e

f i l l e d i n 5 w a y s .

∙ O n e o f t h e r e m a i n i n g t w o p o s i t i o n s

c a n b e f i l l e d i n 4 w a y s .

∙ T h e l a s t r e m a i n i n g p o s i t i o n c a n b e

f i l l e d i n 3 w a y s

∴ 5 \cdot 4 \cdot 3 = 60 t o t a l l w a y s i - e n u m b e r

o f i n t e g e r s .

Commented by Tawa11 last updated on 23/Oct/22

God bless you sir . I really appreciate .

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