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The sum of all 2 digited odd numbers is...

The sum of all `2` digited odd numbers is

A

2475

B

2530

C

4905

D

5049

Text Solution

Verified by Experts

The correct Answer is:
A
Sum of odd numbers `=n^(2)`
Two-digit odd numbers are from `11-99.`
Number of odd numbers from 1 to 99=50
Sum of odd numbers from 1 to `99=50^(2)=2500`
Number of odd numbers from `1+9=5`
Sum of odd numbers from 1 to `9=5^(2)=25`
So, Sum of all two digit odd numbers
`=2500-25=2475.`
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