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प्रश्न
Find if the following discount series is better for the customer:
25%, 20% and 15%
उत्तर
Let the M.P. be Rs. x
First discount
S.P. = `(1 - "d"_1/100)(1 - "d"_2/100)(1 - "d"_3/100)` of M.P.
= `(1 - 25/100)(1 - 20/100)(1 - 15/100) xx x`
= `(75)/(100) xx (80)/(100) xx (85)/(100) xx x`
= 0.510x.
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