Subject :IMO Class : Class 7
The value of ab – ba, if a = 3, b = 7 is ______.
A 1825
B 1840
C 1844
D 1850
IT SHUD BE OPTION D
The value of ab – ba, if a = 3, b = 7 is ______.
A 1825
B 1840
C 1844
D 1850