Question

Please help guys to answer this question by full explanation. Thanks in advance.
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Answer 1

Step-by-step explanation:

Let the MP be X

given that

discount %=20

discount= discount % of MP

= 20% × X

= 20X/100 = X/5

SP= MP - discount

= X -(X/5)

=4X/5

if there is no discount,SP is X since there is no discount

since CP is constant,decrease in SP after giving discount is decrease in profit after giving discount

200-100=X-4X/5

100=X/5

X=500

MP = 500

SP = 4X/5 =4×500/5 =400

CP=SP- profit = 400 -100 =300