Suppose, the present age of Vishal be P years.
According to question,
present age of Vishal + 1 year = 2 ( present age of Vishal - 12 years )
P + 1 = 2(P ? 12)
? 2P ? P = 25
? P = 25 years
Therefore , the present age of Vishal is 25 years .
Both courses of action are not strong.
All are volatile except iron.
In all pairs except (d), first is used to contain the second.
All are the currencies of different Countries.
1/9 : 1/92 : : 1/13 : 1/132
Second is obtained from the first .
We can write with pen, marker, pencil on paper. So, paper is defferent from others.
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