Question

by selling 90 ball pen for ​

Answer 1

Answer:

I think this the answer

ANSWER

S.P. of 90 ball pens = Rs.160, 

Loss = 20%

∴ C.P. of 90 ball pens = Rs. (100−20)160×100=Rs.80160×100=Rs.200

∴ C.P. of 1 ball pen = Rs. 920 Suppose x ball pens are sold to earn a profit of 20 %

Then C.P. of x ball pens = Rs. 920x 

S.P. of x ball pens = Rs.96 

∴Profit=Rs.(96−920x)

Given profit % = 20%

∴920x(96−920x)×100=20⇒(96−920x)×5=920x

⇒96−920x=94x⇒924x=96⇒x=2496×9=36

∴ 36 ball pens should be sold for Rs.96 to earn a profit of 20%

Step-by-step explanation:

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Answer 2

Answer:

by selling 90 ball pen for

Hope it helped you mate

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