List of top Quantitative Ability and Data Interpretation Questions on Data Sufficiency

Study the question 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

This question consists of a question and two statements numbered I and II. Decide whether the data given in the statements are sufficient to answer the question.

What is the 57th number in a series of numbers?
I. Each number in the series is three more than the preceding number.
II. The tenth number in the series is 29.