Question

A shopkeeper earns a profit of 5 by selling a new register and incurs a loss of
2 per register on old stock. In a particular day, he incurs a loss of 36, by
selling 10 new registers. How many old registers did he sell on that particular
day?​

Answer 1

Answer:

43 old registers were sold on a particular day.

Step-by-step explanation:

Let's assume the loss from sale of old regiters be"x"

Profit on selling 10 NEW registers = Rs. 50

Total Loss = Rs. 36

So, total Loss = Loss from Old Registers - Profit from New Registers

⇒ 36 = x - 50

⇒ x = 86

So, loss from old registers is Rs. 86, however loss from one old register is Rs. 2.

Hence total old registers sold = 86/2 = 43 old registers