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QUESTION
Q
A trader allows two successive discounts of 20% and 10%. If he gets Rs.108 for an article, find its marked price.
A trader allows two successive discounts of 20% and 10%. If he gets Rs.108 for an article, find its marked price.
A
Rs.156
B
Rs.140
C
Rs.138
D
Rs.130
E
Rs.150
A
Rs.156
B
Rs.140
C
Rs.138
D
Rs.130
E
Rs.150
Solution
Let, the marked price be = M
Selling price = Rs.108
Therefore,
(1 − 0.2)(1 − 0.1)M = 108
(0.8)(0.9)M =...
Let, the marked price be = M
Selling price = Rs.108
Therefore,
(1 − 0.2)(1 − 0.1)M = 108
(0.8)(0.9)M = 108
M = 108/0.72
= Rs.150
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Solution
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Keynote
If N% discount is offered on an item whose marked price is M, then selling price is
= [(100 − N)/100] × M
If N% discount is offered on an item whose marked price is M, then selling price is
= [(100 − N)/100] × M
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