exam Maths Puzzle Numerical Ability

From a piece of cloth we cut 1/5, then 3/8 of the rest and we see that 22m remains more than the 2/5 of the quantitie initial.How many meters of cloth were there at the begining ?

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exam Other Question
How many pounds of seed worth $0.60 a pound must be mixed with 300 pounds of seed worth $0.35 a pound to produce a mixture worth $0.50 per pound?



Thanks so much!!! Hi, I'm having trouble with inverse functions. Can you help me?

Find the inverse function of f.

f(x) = x-2/x+2