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Re: If a, b, and c are different constants, how many different numbers y [#permalink]
The key is to recognize that when the question says "constants" it means that there is only one set of constants, not an infinite number of them.

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Re: If a, b, and c are different constants, how many different numbers y [#permalink]
Hey, I'm unable to understand the answer. Ideally, if a=0, won't the whole equation collapse as it will make b=c, which is not possible because they are different constants. So shouldn't we eliminate a=0 case as a whole?
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Re: If a, b, and c are different constants, how many different numbers y [#permalink]
­Since the equasion is valid a*y + b = C, isn' t it assumed that a is not equal to zero, since b and c are different and hence the answer being 1.
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Re: If a, b, and c are different constants, how many different numbers y [#permalink]
Expert Reply
anchal02kansal wrote:
Hey, I'm unable to understand the answer. Ideally, if a=0, won't the whole equation collapse as it will make b=c, which is not possible because they are different constants. So shouldn't we eliminate a=0 case as a whole?

­
aniruddharora wrote:
­Since the equasion is valid a*y + b = C, isn' t it assumed that a is not equal to zero, since b and c are different and hence the answer being 1.

Imagine a game where a, b, and c stand for some constants, but we don't know which ones. Next, a host writes an equation: ay + b = c and asks how many values of y can satisfy this equation. As shown in the solution, if a = 0, then there is no such y for ay + b = c to hold. If a is not 0, then there is one value of y such that a*y + b = c holds.­
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Re: If a, b, and c are different constants, how many different numbers y [#permalink]
Got it , I assumed that the equation must be satisfied not like for what value of y will it be satisfied

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Re: If a, b, and c are different constants, how many different numbers y [#permalink]
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