Question

a shopkeeper earn a profit of rs 2 by selling a new register and incurs a loss of 1.20 p per register of old stock. in a particular day he incurs a loss of rs. 4, he sold 10 new registers. how many old registers did he sell on particulars day

Answer 1

let the old registers sold be x
so
10*2-1.2x= -4
-1.2x= -24
x=-24/1.2= 20

Answer 2

Answer:

20

Step-by-step explanation:

Profit of selling 1 new register = Rs.2

Loss on selling 1 old register = Rs.1.20

Let the old registers sold be x

Now we are given that in a particular day he incurs a loss of rs. 4, he sold 10 new registers.

$10\times 2-1.2x= -4$

$20-1.2x= -4$

$-1.2x= -24$

$x= \frac{-24}{-1.2}$

$x= 20$

Thus the total number of old registers sold is 20