এক লোক ক হতে খ পর্যন্ত ঘণ্টায় ১০ মাইল গতিতে দৌড়ে গেল এবং খ হতে ঘণ্টায় $২\frac{১}{২} $মাইল গতিতে ফিরে এলো ৷ এতে তার মোট সময় লাগলো ৩ ঘণ্টা। ক ও খ এর মধ্যে দূরত্ব কত মাইল?

Ashifur August 8, 2023 - 14:42

Problem: এক লোক ক হতে খ পর্যন্ত ঘণ্টায় ১০ মাইল গতিতে দৌড়ে গেল এবং খ হতে ঘণ্টায় $২\frac{১}{২} $মাইল গতিতে ফিরে এলো ৷ এতে তার মোট সময় লাগলো ৩ ঘণ্টা। ক ও খ এর মধ্যে দূরত্ব কত মাইল?

View all: BANGLADESH BANK BANKERS | WRITTEN QUESTION (MATH) SOLVE | 1988

Correct Answer: উত্তরঃ নির্ণেয় দূরত্ব ৬ মাইল ।

Explanation:

ধরি, মোট দূরত্ব = x মাইলপ্রশ্নমতে,$\frac{x}{১০}+\frac{2x}{5}$ =৩ ঘণ্টা

=>$\frac{৫x}{১০}$=৩

=>x=৬

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