In the given figure MNOP is a parallelogram. PM is extended to Z. OZ intersects MN and PN at Y and X respectively. If OX = 27 cm and XY = 18 cm, then what is the length (in cm) of YZ?

The mode and median of the data 8, 6, 8, 7, 8, 6, 8, 7, 6 is

If 8, X and 50 are in continued proportion, then the value of x is

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

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

15     18    16   19     17    20    ?

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 

What is the Area of the given Field book.

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?