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Question

If range of the numbers x1,x2,x3,x4,x5 is r where xi<xi+1. If each number is multiplied by p and then k is subtracted from each number then range of the new numbers is
  1. pr
  2. p(rk)
  3. p
  4. prk


Solution

The correct option is A pr
Range of x1,x2,x3,x4,x5 is x5x1=r

Now new data xi=pxik
Range :x5x1=px5k(px1k)
=p(x5x1)=pr

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