Question

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Answer 1

Answer:

40/3 is the answer

Step-by-step explanation:

you need to know that 1 dozen = 12 and 1 score = 20

12 articles are bought at(cp) rs45 = 45/12 = 15/4 = 3.75

20 articles are sold at(sp) rs85 = 85/20 = 4.25

there is gain so,sp-cp = 4.25-3.75 = 0.50

gain percent =

$(0.50 \div 3.75) \times 100 \\ (50 \div 375) \times 100$

= 40/3

hope it helps you mark it as BRAINLIEST