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AMARCHAND SINGHVI INTERNATIONAL SCHOOL

WORKSHEET-I

CLASS X – MATHEMATICS

CHAPTER 3- PAIR OF LINEAR EQUATION IN TWO VARIABLES (PART-1)

Note: All these questions and answers are to be done in the notebook.

For example: 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. Represent this situation

algebraically and graphically.

The solution table is

-7 0 7

5 6 7

6 4 0

0 -1 -2

Solutions:

Let the present age of Aftab be ‘x’.

And, the present age of his daughter be ‘y’.

Age of Aftab –

Age of his daughter –

According to the question,

Age of Aftab will become

Age of his daughter will become

According to the situation given,

For,

The solution table is

The graphical representation is:

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Note: Following Questions to be done in notebook.

Q1. 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.

Q2. The cost of 2 kg of apples and 1kg 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.

Q3. Akhila went to a fair in her village. She wanted to enjoy rides on the Giant Wheel and

play Hoopla (a game in which you throw a ring on the items kept in a stall, and if the ring

covers any object completely, you get it). The number of times she played Hoopla is half

the number of rides she had on the Giant Wheel. If each ride costs Rs 3, and a game of

Hoopla costs Rs 4, how would you find out the number of rides she had and how many

times she played Hoopla, provided she spent Rs 20. Represent the situation algebraically

and geometrically.