GMATD11 wrote:
What is the value of the two-digit integer x ?
(1) The sum of the two digits is 3.
(2) x is divisible by 3.
45) What is the value of the 2digits integer x?
a) The sum of the digits is 3.
b) x is divisible by 3.
a) let y and z are two digits
then y+z=3
Not Sufficient
b) if x is divisible by 3
x can be 3,6,9,12,15,18,21,24,27,30...
Not Sufficient
Combining a and b
x=30 or it can be 12 ,21 ...
Ans e
What is the value of the two-digit integer x ?
Let 2-digit number be ab.
(1) The sum of the two digits is 3.
a+b=3
(a,b) = {(3,0),(1,2),(2,1)}
NOT SUFFICIENT
(2) x is divisible by 3.
10a+b=3k
(a,b) = {(3,0),(1,2),(2,1)}
NOT SUFFICIENT
(1)+(2)
(1) The sum of the two digits is 3.
a+b=3
(2) x is divisible by 3.
10a+b=3k
(a,b) = {(3,0),(1,2),(2,1)}
NOT SUFFICIENT
IMO E
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