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Profit and Loss Practice Test 1
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Question : 29
Total: 40
A discount series of 10%, 20% and 40% isequal to a single discount of:
50%
56.8%
70%
70.28%
Validate
Solution:
👈: Video Solution
x
=
10
%
,
y
=
20
%
,
z
=
40
%
Single discount
p
=
x
+
y
−
x
y
100
=
10
+
20
−
10
×
20
100
=
28
%
Now,
p
+
z
−
p
×
z
100
=
40
+
28
−
40
×
28
100
=
56.8
%
Single discount = 56.8%
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