Question

a dealer sell a toy at a loss of 4 per if he sold it for 180 rs more he would have made a profit of 16 per find the cost price of the toy​

Answer 1

Step 1 in attachment

Step 2: Solve the quadratic equation.

⇒x 2

+120x−20x−2400=0 [Using middle term split method]

⇒x(x+120)−20(x+120)=0

⇒(x−20)(x+120)=0

⇒(x−20)=0or(x+120)=0

∴x=20or −120

But x can’t be negative. So, x=20.

Answer 2

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