Pair of Linear Equations in Two Variables Examples and Solutions
- Linear Equations in two variable ,Ex 3.5 ,Q4 Sec 3
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- Linear Equations in two variable ,Ex 3.6 ,Q1 sec 5
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- Linear Equations in two variable ,Ex 3.5 ,Q3
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- Linear Equations in two variable ,Ex 3.6 ,Q1 sec 8
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- Linear Equations In Two Variable Exercise 3.3, Q2
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- Linear Equations in two variable ,Ex 3.5 ,Q2 Sec 2
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- Linear Equations in two variable ,Ex 3.7 , Q7 Sec 3
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Draw a graph of the line x – 2y = 3. From the graph, find the coordinates of the point when (i) x = – 5 (ii) y = 0.
Speed of a boat in still water is 15 km/h. It goes 30 km upstream and returns back at the same point in 4 hours 30 minutes. Find the speed of the stream.
A motor boat whose speed is 24 km/h in still water takes 1 hour more to go 32 km upstream than to return downstream to the same spot. Find the speed of the stream.
The cost of 2 kg of apples and 1 kg of grapes on a day was found to be Rs 160. After a month, the cost of 4 kg of apples and 2 kg of grapes is Rs 300. Represent the situation algebraically and geometrically.
A takes 6 days less than B to do a work. If both A and B working together can do it in 4 days, how many days will B take to finish it?
Aftab tells his daughter, “Seven years ago, I was seven times as old as you were then. Also, three years from now, I shall be three times as old as you will be.” (Isn’t this interesting?) Represent this situation algebraically and graphically
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.