Math, asked by akgvummoul, 1 year ago

On selling a t.v at 5% gain and a faidge at 10% gain shop keeper gain rs 2000 but if he sells the t.v at 10% gain in the fridge at 5% loss he gain rs 1500 on the transaction actual price of t.v and fridge

Answers

Answered by santy2
118
To solve these questions, you can form simultaneous equations:
First let price of t.v be x  and that of the fridge be y
5% gain on chair= 5/100x= 0.05x
10%gain on fridge= 10/100y =0.1y
Therefore 0.05x + 0.1 y = 2000(total profit).....first equation(hence 5x+10y=200000)

10%gain on t.v = 10/100x =0.1x
5%loss on fridge= -5/100y =-0.05y

Therefore 0.1x - 0.05y = 1500......our second equation (hence, 5y= 10x-150000...y = (10x-150000)/5....y=2x-30000

solve by substitution: y= 2x-30000
5x+10y=200000
5x + 10(2x-30000)=200000 
5x + 20x -300000= 200000
25x = 500000
   x=  20000
y= 2x-30000
  =2(20000)-30000    =40000-30000
  =10000

Therefore the price of the tv = Rs. 20,000
                      price of the fridge= Rs. 10,000
Answered by mayank161203
9

Plz mark it as brainliest

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