Rupa and Saroj wants to attend a seminar together between 9 am to 5 pm on Friday. Saroj cannot leave till after her lunch break which begins at 1.30 pm Rupa is free after her lunch break which begin at 1.30 pm . Rupa is free after her meeting which ends at noon. For how many hours can the two of them attend the seminar ?
1) `3^(1/2)` hours
2) `2^(1/2)` hours
3) `4^(1/2)` hours
4) Can't be determined
5) None of these

Explanation

4, Can.t be determined