1.

Price of 7 bats and 6 balls is 3800 and the price of 3 bats and 5 balls is 1750.What is the price of a cricket bat ? What is the price of a ball ?

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Answer:

ANSWER

Let the COST of one BAT be x

and the cost of one ball be y

Then According to Question

7x+6y=3800   ---(i)

3x+5y=1750   ---(II)

MULTIPLYING (i) by 3 and (ii) by 7 we get

21x+18y=11400   (iii)

21x+35y=12250   (iv)

subtracting (iv) from (iii) we get 

−17y=−850

⇒y=50

putting y=50 in (i)

7x+6y=3800

⇒7x+6×50=3800

⇒7x=3800−300

⇒x=500

Therefore the cost of each bat is Rs 500

and the cost of each ball is Rs 50


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