Question

A couch buy 7 bats and 6 balls for rs 3800 and she buy 3 bats and 5 balls for 1750

Answer 1

LET,

BATS BE X
AND BALLS BE Y

SO
7X+6Y=3,800................1
3X+5Y=1,750.................2

MULTIPLY EQN 1 BY 3 AND 2 BY 7.....

21X+18X=11,400............3
21X+35Y=12,250..........4

NOW SUBSTRACT EQN 3 FROM 4

21X+35Y=12,250
-21X-18Y=-11,400
_____________
17Y=850

Y=850/17

Y=50

PUT Y=50 IN EQN 2

3X+5*50=1750

3X+250=1750

3X=1750-250

3X=1500

X=1500/3

X=500

SO PRICE OF ONE BAT = 500RS...
SO PRICE OF ONE BALL = 50RS...

FROM THIS INFO U CAN SOLVE FURTHER QUESTION.......☺❤

PLZ MARK AS BRAINLIEST ❤☺❤

Answer 2

Hola!!!

Let me help............

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$\huge\mathfrak{Answer:}$

Let the cost of a bat be x

and cost of a ball be y

Solution:

ATQ,

7x + 6y = 3800. — [1]

3x + 5y = 1750. — [2]

Multiply eq. [1] by 5 and eq. [2] by 6

35x + 30y = 19000. —[3]

18x + 30y = 10500. —[4]

Subtract eq. [4] from [3]

17x = 8500

Therefore, x = 500

Substituting x in eq. [2],

1500 + 5y = 1750

5y = 1750 - 1500

5y = 250

y = 50

Therefore cost of bat = Rs.500

and cost of ball = Rs.50

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Hope this helps! =)