The marked price of an article is 25% above its cost price. When it is sold at a disa of 15%, there is a gain of Rs 200. Find, (i) the cost price of the article
(ii) the marked price of the article​

Solve this problem! extra ! 3025/5.5 = a/90.75

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?