200 টাকায় একটি বই ও পেন কিনে বই 15% লাভ ও পেন 5% ক্ষতিতে বিক্রয় করলে মোট 14%লাভ। বইটির ক্রয়মূল্য?

200 টাকায় একটি বই ও একটি পেন কিনে বইটিকে 15% লাভে এবং পেনটিকে 5% ক্ষতিতে বিক্রয় করলে মোটের ওপর 14% লাভ হয়। বইটির ক্রয়মূল্য কত?
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