Question

A shopkeeper eams a profit of 2 by selling a new register and incurs a loss of 120 per register of old stock In a particular day he incurs a loss of 4, he sold 10 new registers. How many old registers did he sell on that particular day? hour untill midnight​

Answer 1

$\huge\bf{Answer♤}$

Given:-

•Profit of selling 1 new register

= Rs.2

•Loss on selling 1 old register = Rs.1.20

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Find:-

•old registers did he sell on that particular day

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Solution:-

•Let the old registers sold be x

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$\therefore$$\small\tt{10×2-1.2x=-4}$

$\rightarrow$$\small\tt{20-1.2x=-4}$

$\rightarrow$$\small\tt{1.2x= -4-20}$

$\rightarrow$$\small\tt{1.2x= -24}$

$\rightarrow$$\small\tt{x= 20}$

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