A tradesman gives 4% discount on the marked price and gives 1 article free for buying every 15 articles and thus gains 35%. By how much % more is the marked price above the cost price?

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Step-by-step explanation:This price after discount of 4% = 100 – 4 = 96

he gives 1 article free on buying of 15 articles : discount of 1 on every set of 16

Therefore discount on 96 = 96/16 = 6

Thus % increase on 100 = (100/3)*(3/200)*100 = 50%

Answer:50%

Answer:Let the MP of 1 article = Rs 1

MP of 15 article = Rs 15

SP of (15+1) articles = 15 x 96/100

= Rs 14.40

CP of 16 article = 14.40/135 x 100

= Rs 32/3

CP of 1 article = 32/3×16

= Rs 2/3

Required % = 1/3 x 3/2 x 100

= 50