The sum of positive integers x and y is 77. what is the value of xy?
a) x=y+1
b) x and y have the same tens digit.
a) x=y+1
b) x and y have the same tens digit.
a) 38,39rajatvmittal wrote:The sum of positive integers x and y is 77. what is the value of xy?
a) x=y+1
b) x and y have the same tens digit.
b) tens digit can only be 3 and to satisfy the condition
x+y=77
hence it has to be 38 and 39
IMO D
