exam Maths Puzzle Numerical Ability

Solve for n.
35. P(n,4) = 40[P(n-1,2)]


36. P(n,4) = 3[P(n,3)]


37. n[P(5,3)] = P(7,5)]



38. 208P(n,2) = P(16,4)


how exactly do you solve for n? please and thank you.

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exam Other Question

every time I answered equation I am confused with the sigh the that solver used. can you please tell me the proper procedure of solving equation.. do I use addition or subtraction? show how the graph of y=1/2(x+4)^2+3 differs in looks from the graph of y=x^2