Question:
What is the value of $x$ and $y$?
I. $3x + 2y = 45$
II. $10.5x + 7y = 157.5$
What is the value of $x$ and $y$?
I. $3x + 2y = 45$
II. $10.5x + 7y = 157.5$
I. $3x + 2y = 45$
II. $10.5x + 7y = 157.5$
Show Hint
Two independent linear equations are sufficient to solve for two unknowns.
Updated On: Aug 6, 2025
- The question can be answered by one of the statements alone but not by the other.
- The question can be answered by using either statement alone.
- The question can be answered by using both the statements together, but cannot be answered by using either statement alone.
- The question cannot be answered even by using both statements together.
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The Correct Option is C
Solution and Explanation
I alone: One equation in two variables — not sufficient.
II alone: One equation in two variables — not sufficient.
Together: Two linear equations in two unknowns $\Rightarrow$ unique solution.
II alone: One equation in two variables — not sufficient.
Together: Two linear equations in two unknowns $\Rightarrow$ unique solution.
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