These questions are based on the five three digit numbers given below :
346 815 428 271 732
Series : 346 815 428 271 732
If the positions of the first and the third digits of each of the numbers are interchanged, new numbers :
643 , 518 , 824 , 172 , 237
1st digit of highest number (824) = 8
3rd digit of lowest number (172) = 2
Thus, $\frac{8}{2}=4$
=> Ans - (D)
Series : 346 815 428 271 732
If the positions of the first and the third digits of each of the numbers are interchanged, new numbers :
643 , 518 , 824 , 172 , 237
1st digit of highest number (824) = 8
3rd digit of lowest number (172) = 2
Thus, $\frac{8}{2}=4$
=> Ans - (D)