Profit and Loss Practice Test 3

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A single discount equivalent to the following three successive discounts of 30%, 20% and 10% is given by:

Solution:

x = 30%, y = 20%, z = 10%

p=x+y-{xy}/100

=30+20-{30 ×20}/100=44%

Now,

p+z-{pz}/100

=44+10-{44×10}/100=49.6%

So, single discount is 49.6%.

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