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4. Linear Equations in Two Variables
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Total cost of a school picnic consists of two parts $-$ bus fare ₹ $200$ and cost of snacks at the rate of ₹ $30$ per student. Representing the total number of students by $x$ and the total cost by $y,$ form the linear equation in two variables and draw its graph. If the number of students going on the picnic is $40,$ find the total cost.
Option A
Option B
Option C
Option D
Solution
$y=3 x+200,$ ₹ $1400$
Standard 9
Mathematics
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