8th going 9th

Q

• a

• b

• c

• d

Find the number of triangles

• a

• b

• c

• d

A man walks 5 km toward the South and then turns to the right. After walking 3 km he turns to the left and walks 5 km. Now in which direction is he from the starting place?

• West

• North-East

• South-West

• South

If A + B means A is the mother of B; A - B means A is the brother B; A % B means A is the father of B and A x B means A is the sister of B, which of the following shows that P is the maternal uncle of Q?

• Q - N + M x P
• P + S x N - Q
• P - M + N x Q
• Q - S % P

If $ means +, # means — @ means x and means ÷, then what is the value of
                16 $ 4 @ 5 # 72 8?

• 25

• 27

• 29

• 36