self Maths Puzzle General Ability General Knowledge

Find min value of fn: |-5-x| + |2-x|+|6-x|+10-x|; where x is an integer

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self Other Question

If tan54 = atan18 + b tan36, then a+b is___ Mr. X while buying cloth uses a faulty meter tape which actually measures 110 cm and while selling cloth, he uses a faulty meter tape which actually measures 90 cm. If he buys the cloth at a discount of 5% on the marked price and sells it on a discount of 10% on the same marked price, then what is his percentage gain or loss?
15.8% profit
4.21% loss
5% loss
25% profit
None of these