A) 12
B) 14
C) 16
D) 18
Correct Answer: A
Solution :
(a): Let three nos. be (a-1), a, (a +1) \[\therefore a+\left( a+1 \right)-3\left( a-1 \right)\] \[\Rightarrow 2a+1=3a-3\] \[\Rightarrow 4-a\] \[\Rightarrow sum=12\]You need to login to perform this action.
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