Actually i think there is a mistake with the question.
can yu check it out once again.
In the 2nd case the remainder should have been 7 to tally with the question above stated.
Then according to problem,
Then its given it leaves a remainder of 4 then 48+4=52.
Therefore 52/12=Quotient=4 Remainder=4
Then if you divide 52 with 12 then