A merchant buys 25 litres of milk daily at the rate of Rs.12 per litre. He mixes 5 litres of water in it and sells at the rate Rs.10.40 per litre. His gain/loss is:

When a discount of Rs. 42 is allowed on the marked price of an article, the new reduced price becomes 86% of the original price. Find the marked price.

The radius of a sphere and right circular cylinder is 'r'. Their volumes are equal. The ratio of the height and radius of the cylinder is:

Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water

Which of the following sets of taxes belongs to Central Government?

Which is called the "Lake District of India"?

Which one of the following institutions is also called "World Bank" ?

'Stand up India' scheme launched by the Prime Minister recently is related with