If the lines (7x+by=21) and (14x+10y=50) are distinct parallel lines, what will be the value of (b)?

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Correct answer: (5)

For parallel lines, (\frac{7}{14}=\frac{b}{10}), so (b=5). Since (\frac{21}{50}\neq\frac{1}{2}), the lines are not coincident.

What is the correct answer to this question?

(5)

Why is this the correct answer?

For parallel lines, (\frac{7}{14}=\frac{b}{10}), so (b=5). Since (\frac{21}{50}\neq\frac{1}{2}), the lines are not coincident.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Pair of Linear Equations in Two Variables. Topic: Graphical method of finding solutions..

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