Question 122

Study the questions and the statements given below. Decide whether any information provided in the statement(s) is redundant and/or can be dispensed with, to answer it.

If 7 is added to numerator and denominator each of fraction a/b, will the new fraction be less than the original one?

Statement I: a = 73, b = 103
Statement II: The average of a and b is less than b
Statement III: a − 5 is greater than b − 5

Solution

If $$\ \frac{\ a}{\ \ b}$$ is less than 1, then $$\ \frac{\ a+7}{\ \ b+7}$$ > $$\ \frac{\ a}{\ \ b}$$ given that a,b>0

Hence, if I is given. II or III are redundant.

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