Three vessels whose capacities are in the ratio of 3: 2: 1 are completely filled with milk mixed with water. The ratio of milk and water in the mixture of vessels are 5: 2, 4: 1 and 4: 1 respectively. Taking 1/3 of first, 1/2 of second and 1/7 of third mixtures, a new mixture kept in new vessel is prepared. The percentage of water in the new mixture is 

A sum of money becomes 4 times at simple interest in 10 years. What is the rate of interest?

Pipes A and B can fill a tank in 16 hours and 24 hours, respectively, and Pipe C alone can empty the full tank in x hours. All the pipes were opened together at 10:30 a.m, but C was closed at 2:30 p.m. If the tank was full at 8:30 p.m on the same day, then what is the value of x?

What is the Area of the given Field book.

What approximate value should come in place of the question mark(?) in the following question?
5223÷36×0.93=?

The x - intercept on the graph of 7x - 3y = 2 is :

A man buys a scooter on making a cash down payment of Rs. 16224 and promises to pay two more yearly installments of an equivalent amount in the next two years. If the rate of interest is 4% per annum, compounded yearly, the cash value of the scooter, is 

What will come in place of the question mark (?) in each of the following series?

15     18    16   19     17    20    ?