Hello aspirant,

If the manufacturer gains 10%, the wholesaler gains 15% and the retailer gains 25%, then the cost of the production of the goods if the retail price is Rs.1265 will be Rs.800.

This is because of the following step I've mentioned-

C.P. of the article= 1265* (100/110)*(100/115)*(100/125)= Rs.800

Hope, this answer helps you.