jsasipriya wrote:How many different numbers y are there such that Ay+B=C (A ,B , and C are known) ?
1. C>B
2. A>1
The question is asking for the number of values of y, which satisfies the relation Ay + B = C, where A, B, and C are known numbers.
Thus from the relation given we can write y as, y = (C - B)/A
Now if A, B and C are known, we can easily determine the value of y only with exception A = 0. Because when A = 0, then the value of y is undefined as y = (C - B)/A.
Statement 1: C > B
Only from this we cannot determine the number of values of y that satisfies the given relation. We need to know whether A is nonzero or not.
Not sufficient.
Statement 2: A > 1
Clearly A is nonzero and thus we can uniquely determine the number of values of y that satisfies the given relation Ay + B = C. In fact only one number is there, which is given by (C - B)/A
Sufficient.
The correct answer is B.
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