ফেরি পারাপারে চালকসহ একটি গাড়ি পার করার খরচ ৫ ডলার। যাত্রীর জন্য অতিরিক্ত ভাড়া ৫০ সেন্ট। যদি একটি গাড়ি পার করতে ৬.৫ ডলার খরচ হয়ে থাকে তবে গাড়িতে মোট কতজন লোক ছিল।
A. ৩ জন
B. ২ জন
C. ৫ জন
D. ৪ জন
সঠিক উত্তরঃ
D.
৪ জন
Explanation:
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