In each of the following questions, each question is followed by three statements. Read all the statements carefully and find that which of the following statement(s) is/are redundant to answer the question.
The product of three positive numbers 'X', 'Y', and 'Z' is 1248 and their LCM is 156. What is the difference between 'Y' and 'Z'?
Statement (I): Y2- XZ - 40 = 0
Statement (II): The HCF of 'Y' and 'Z' is 4 and their sum is 16.
Statement (III): The difference between HCF of 'X' and 'Y' and HCF of 'X' and 'Z' is 0.
1
Only statement (I) is redundant.
2
Only statement (II) is redundant.
3
Only statement (III) is redundant.
4
Any two statements taken together are redundant.
5
Either statements (I) or (II) alone is redundant.