what is the unit digit of product of first 50 odd natural numbers
Answers
Answered by
130
Hi ,
1 , 3 , 5 , 7 , ...... , 99 are first 50 odd
natural numbers.
Product of these numbers =
( 1 × 3 × 5 × 7 × .....× 99 )
= 5 × ( 3 × 7 × 9 × .....× 99 )
= 5 × odd number
= Odd number whose unit digit is 5
Therefore ,
Unit digit of first 50 odd natural
numbers is 5.
I hope this helps you.
: )
1 , 3 , 5 , 7 , ...... , 99 are first 50 odd
natural numbers.
Product of these numbers =
( 1 × 3 × 5 × 7 × .....× 99 )
= 5 × ( 3 × 7 × 9 × .....× 99 )
= 5 × odd number
= Odd number whose unit digit is 5
Therefore ,
Unit digit of first 50 odd natural
numbers is 5.
I hope this helps you.
: )
Answered by
58
5
as when you multiply 1 by 3 and then 3 by 5 you get units digit 5
now if you multiply 5 by odd no. you get 5 in units place
so units digit is 5 in the product of first 50 odd natural nos.
HOPE THIS HELPS YOU
REPLY SOON
as when you multiply 1 by 3 and then 3 by 5 you get units digit 5
now if you multiply 5 by odd no. you get 5 in units place
so units digit is 5 in the product of first 50 odd natural nos.
HOPE THIS HELPS YOU
REPLY SOON
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