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Pair of Linear Equations in Two Variables
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26/05/2021 11:37 am
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The coach of a cricket team buys 3 bats and 6 balls for Rs.3900. Later, she buys another bat and 3 more balls of the same kind for Rs.1300. Represent this situation algebraically and geometrically.
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26/05/2021 11:40 am
Let us assume that the cost of a bat be ‘Rs x’
And, the cost of a ball be Rs y’
According to the question, the algebraic representation is
3x+6y = 3900
And x+3y = 1300
For, 3x+6y = 3900
Or x = (3900-6y)/3
The solution table is
x → 300, 100, 700
y → 500, 600, 300
For, x+3y = 1300
Or x = 1300-3y
The solution table is
x → 400, 100, 700
y → 300, 400, 200
The graphical representation is as follows.