Subject :IMO Class : Class 8
Which of the following statements is INCORRECT?
AIf a and b are consecutive rational numbers where
B
is a rational number which lies between x and y.
CRational numbers are associative under subtraction.
DThe rational numbers 
are lying on the opposite sides of '0' on the number line.
Ans 1:
Class : Class 9
Answer is option c because rational no.s are associative under additional and multiplication only
Ans 2:
Class : Class 9
c
Ans 3:
Class : Class 8
answer c