A man sold two articles for 1,200 each. In one, he gained 20% and on the other, he lost 20%. His total loss(in Rs.) was

Selling price of both articles = Rs. 1200

Cost price of article on which he get 20% profit = $$C_1=1200\times\frac{100}{100+20}$$

= $$10\times100=Rs.$$ $$1000$$

Similarly, cost price of article on which he get 20% loss = $$C_2=1200\times\frac{100}{100-20}$$

= $$15\times100=Rs.$$ $$1500$$

=> Total CP = $$(1000+1500)=Rs.$$ $$2500$$

and total SP = $$(1200+1200)=Rs.$$ $$2400$$

$$\therefore$$ Loss = $$2500-2400=100$$

=> Ans - (D)