Question

Each contains a question of two statements I and II, giving certain data. Select the correct answer from $\left(1\right)$ to $\left(4\right)$ depending on the sufficiency of data given in the statements to answer each question.
$1$. If I alone is sufficient and II alone is not sufficient to answer the question.
$2$. If II alone is sufficient and I alone is not sufficient to answer the question.
$3$. If both I and II together are sufficient but neither statement alone is sufficient to answer the question.
$4$. If both I and II together are not sufficient to answer the question and additional data specific to the question are needed.
What is the ratio of saving of A and B?
I. The ratio of income of A and B is $5:6$
II. The ratio of expenditure of A and B is $3:4$.

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is D $4$

Income of A = $5x$

Income of B = $6x$

Expenditure of A = $3y$

Expenditure of B = $4y$

Saving of A = $5x-3y$

Saving of B = $6x-4y$

Since, we dont know the values of $x$ and $y$.

We cannot find out the ratio of savings.

Hence, Option D is correct.