(1762.46)8
=(001 111 110 010 . 100 110)2
To get Hexa equivalent no. Group 4 bits from left of decimal point and right of decimal point . Here add extra 2 0's @ the right side of decimal point to make it multiple of 4 bit. So finally
=( 0011 1111 0010 . 1001 1000)2
=(3F2 . 98)16
So option B is Ans