A man bought a horse and sold it at a gain of 10%. If he had bought the horse at 20% less and sold it for Rs.100 more he would have a profit of 40%. The C.P of horse is

A) Rs.2000

B) Rs. 4000

C) Rs.5000

D) Rs.6000

Correct answer:
C) Rs.5000

Description for Correct answer:

Let x be the CP and y be the SP f the horse.

From SP = \( \Large \left( \frac{100 + P%}{100} \right)CP \)

Y = \( \Large\frac{110}{100}x \) ... (1)

And, y + 100 = \( \Large\frac{140}{100}\left(\frac{80}{100}x\right) \) .... (2)

From the equations (1) and (2) we get, x = Rs. 5000



Please provide the error details in above question