If the selling price of T is increased by 20 then what would be the discount ........

Quantitative Aptitude ( CCS) Bar Graph

Direction : Refer to the graphs and answer the following questions.
The first bar graph shows the marked up price of articles with respect to their cost price and the second bar graph shows the discount % given in respective articles.

If the selling price of T is increased by 20%, then what would be the discount%?

50%

58%

45%

40%

52%

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Explanation:

For T:
using MP = (100+p%)/(100-d%) * CP
150% of CP = (100+p%)/(100-50) * CP
p = -25, so loss of 25%
Let CP = Rs 100, so SP = Rs 75
Now SP is increased by 20%, so new SP = 120% of 75 = Rs 90
and MP = 150% of 100 = Rs 150
So discount % = (150-90)/150 * 100 = 40%