Discussion Forum



Each of these questions is followed by three statements. Please study the question and all the three statements given to determine whether any details provided in the statement(s) is redundant and can be dispensed with while answering the given question.

1)

What is the ratio of the ages of Anu and her mother?

I) The sum of the ages of Anu, her mother and of her father's is 62.
II) Five years ago, Anu's age was on-fifth of her father's age.
III) Two years ago, the sum of the ages of Anu and her father was 36.


A) I or II only

B) II or III only

C) III only

D) I or III only

E) All I, II and II are required

Answer:

Option E

Explanation:

A = Anu
M = Mother
F = Father
I) $A+M+F=62$

II) $(A-5)= \frac{1}{5}(F-5)$

III) $(A-2)+(F-2)=36$

From II and III, we may get $A$ and $F$
Putting these values in I, we get $M$
Thus, all I, II and II are required to get the answer.
$\therefore$ Correct answer is (E).