Question
Six person, F, G, H, I, J and K, are placed in a row
facing towards the north (not necessarily in the same order). F is placed to the immediate left of K. J is placed second to the left of G. H is placed second to the right of K. H is placed to the immediate right of J. I is placed to the left of F. Who is placed to the immediate right of I?Solution
I F K J H G
How many triangles are there in the figure given below?

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