What number should replace the question mark?

If = not less than, Δ = greater than,

Then a b Δ c implies that

Two friends start a race, and together they run for 50 mts. Jack turns right and runs 60 mts while Bunny turns left and runs 40 mts. Then Jack turns left and runs 50 mts while Bunny turns right and runs 50 mts. How far are the two friends now from each other

The number of students who took any three of the above subjects was

If Δ = greater than,

Then, a Δ b Δ c does not imply

If θ = equal to ; × = less than ; then, a x b θ c does not mean

Ram and Sham are ranked 13th and 14th respectively in a class of 23. What are their ranks from the last respectively?

I am facing south. I turn right and walk 20 m. Then I turn right again and walk 10 m. Then I turn left and walk 10 m and then turning right walk 20 m. Then I turn right again and walk 60 m. In which direction and I from the starting point

Jatin leaves his house and walks 12 km towards North. He turns right and walks another 12 km. He turns right again, walks 12 km more and turns left to walk 5 km. How far is he from his home and in which direction?