Question

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.

Answer 1

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

Answer 2

Answer:

Let the cost of each bat be Rs. ‘x’

Let the cost of each ball be Rs. ‘y’.

3x + 6y = 3900 ∴ x + 2y = 1300 ………. (i)

Cost of another bat and ball be x + 3y = 1300 …….(ii)

∴Algebriacally

x + 2y = 1300 x + 3y = 1300

And to represent through graph :

(i) x + 2y = 1300 2y = 1300 – x

∴ x = 1300 − /x 2

ii) x + 3y = 1300 3y = 1300 -x