16% की छूट देने के बाद भी 5% का लाभ होता है तो अंकित मूल्य क्रय मूल्य से कितना % अधिक होगा?

Options

A. 0.15
B. 0.18
C. 0.21
D. 0.25

Answer

D

Explanation

`(CP)/(MP)=(100-D%)/(100+P%)`
`=(100-16)/(100+5)=(84)/(105)+21`
Required percentage
`=(21)/(84)xx100=25%`
In such type of questions, use the above formula to save our valuable time
Alternate :-
`therefore` Discount=16%`=(16)/(100)`
=M.P=100 S.P =84 and profit=5%
`(5)/(100)=(1 to " Profit ")/(20 to " C.P")`
S.P=20+1=21
Now

S.P must be same in both cases, make S.P equal
Required percentage
`=(100-80)/(80)xx100`
`=(20)/(80)xx100=25%`