State 'T' for true and 'F' for false.
(i) The addition and subtraction of integer cannot be represented on the number line.
(ii) For any three integers a, b and c, (a + b) + c = (a + c ) (b + c).
(iii) Under addition, the integer 1 is its identity.
(iv) The product of even number of negative integers is negative.
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6 trees were planted at equal distance apart along one side of a straight road. The distance between the first tree and the third tree is 12 m. What is the distance between the third tree and sixth tree?
A 6 m
B 30 m
C 12 m
D 18 m
Fill in the blanks.
• Difference between LCM of both the numbers on House-1 and HCF of both the numbers on House-2 is __P__.
• Total number of prime factors of the greatest number among the numbers on the houses is __Q__.
• Number of common factors of numbers on House-2 is __R__.