A man bought an article and sold it at a gain of 10%. If he had bought the article at 20% less and sold it for 1000 Rs. more, he would have made a profit of 40%. The cost price of the article is?

50,000

                 CP      :        SP

Earlier:     100     :      110

Now:         80      :      112                      (40% of 80 = 32)

ATQ,

110 R  - 112 R = 1000

2 R = 1000

1R = 500

C.P. = 100R = 100 × 500 = 50000/-