টাকায় ৫টি মার্বেল বিক্রয় করায় ১২% ক্ষতি হয় । ১০% লাভ করতে হলে টাকায় কয়টি বিক্রয় করতে হবে ?
Created: 5 years ago |
Updated: 10 months ago
best des
Let, the cost price of 5 marbles be x
selling price of 5 marbles tk.1
Now, x - 1 = 12% of x
or, x - 1 = 12x/100
or, x = 100/88
at 10% profit, selling price = 110% of 100/88 = 110/88
now, at tk. 110/88 number of marble to be slod 5
so, at tk. 1 number of marble to be slod = 5*88/110 = 4
Md Azizur Rahman
Founder of Satt
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