A tree is seventh in a row of trees from either end of the row. How many trees are there in the row?

6 : 17 :: 9 : ?

In the given figure, how, how many keys are duplication but not steel?

A man takes 6 km distance to go around the rectangular area. If the area of the rectangle is 2 sq. km. find the difference between length and breadth.

In a row of children Deepti is 9^th from the left and kashish is 13^th from the right. When they exchange their positions and then Deepti becomes 18^th from the left. What is the new position of Kashish from the right end of the row?

Which of the following letter clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of:: is the same as that on the right side of::?
# : KNE :: PQV : %

Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.
FLQV :JISU :: DJNR : ?

DIRECTIONS: Study the following information and answer the given questions:
A person goes 9 m straight. He turns 120^o clockwise and goes 41 m. Then, he turns 210^O anticlockwise and goes 44 m. Finally, he turns 150^O clockwise and goes 5 m.
How far is he from his starting point?