A coach buys 3 bats and 6 balls for 3,900 and later 1 bat and 3 balls for 1,300. This is a situation of:
AOne linear equation
BA quadratic equation
CA cubic expression
DTwo linear equations
Answer & Solution
Correct answer: D. Two linear equations
1. Let bat cost x and ball cost y.
2. Each purchase gives one equation.
3. Together they form a pair of linear equations.
_Source: NCERT Class 10 Mathematics, Chapter 3, Pair of Linear Equations in Two Variables._
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