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Rohit Sharma

· started a discussion

· 1 Months ago

REGARDING VALUE OF A (Question:586984.1)

THE VALUE OF A COULD BE ANYTHING 3,4,5 ETC.
HOW CAN WE FIX ITS VALUE 3?

Question:
DIRECTIONS: In the following questions a statement is followed by two explanatory statements, I and II. Answer each question using the following instructions:

What is the value of a, given that a, b and c are three distinct positive integers?


I.     Ka × Kb × Kc = Kabc, where K is any positive number greater than 1.

II.    a > b > c

Options:
A) if the question can be answered by using the statement I alone but not by using statement II alone.
B) if the question can be answered by using the statement II alone but not by using statement I alone.
C) if the question can be answered by using either of the statements alone.
D) if the question can be answered by using both the statements together but not by either of the statements alone.
E) if the question cannot be answered on the basis of the two statements.
Solution:
Ans: (d)

From statement I, we have a + b + c abc. This is possible for positive integers if a, band care 1, 2 and 3 but we cannot say anything about the value of a. Hence, statement I alone is insufficient. From statement II, we have a > b > c. Hence, statement II alone is insufficient. 

Combining both statements, we can conclude a = 3.


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