Question 2. The coach of a cricket team buys 3 bats and 6 balls for Rs 3900. Later, she bu Chapter 3: Pair of Linear Equations in Two Variable Maths Class 10 solutions are developed for assisting understudies with working on their score and increase knowledge of the subjects. Question 2. The coach of a cricket team buys 3 bats and 6 balls for Rs 3900. Later, she buys another bat and 2 more balls of the same kind for Rs 1300. Represent this situation algebraically and geometrically. is solved by our expert teachers. You can get ncert solutions and notes for class 10 chapter 3 absolutely free. NCERT Solutions for class 10 Maths Chapter 3: Pair of Linear Equations in Two Variable is very essencial for getting good marks in CBSE Board examinations
Solution: Let cost of one bat = Rs x
Cost of one ball = Rs y
3 bats and 6 balls for Rs 3900 So that
3 x + 6y = 3900 … (1)
Divide complete equation by 3 we get
X+ 2y = 1300
Subtract 2y both side we get
X = 1300 – 2y
Plug y = - 1300, 0 and 1300 we get
X = 1300 – 2 ( - 1300 ) = 1300 + 2600 = 3900
X= 1300 -2(0) = 1300 -0 = 1300
X= 1300 – 2(1300) = 1300 – 2600 = - 1300
X | 3900 | 1300 | -1300 |
y | -1300 | 0 | 1300 |
Given that she buys another bat and 2 more balls of the same kind for Rs 1300
So we get
x + 2 y = 1300 … (2)
Subtract 2y both side we get
X = 1300 – 2y
Plug y = - 1300, 0 and 1300 we get
X = 1300 – 2 ( - 1300 ) = 1300 + 2600 = 3900
X = 1300 – 2 ( 0 ) = 1300 - 0 = 1300
X = 1300 – 2(1300) = 1300 – 2600 = -1300
X | 3900 | 1300 | -1300 |
y | -1300 | 0 | 1300 |
Algebraic representation
3 x + 6 y = 3900 … (1)
x + 2 y = 1300 … (2)
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