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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

In a market survey, 20% opted for product A whereas 60% opted for product B. The remaining individuals were not certain. If the difference between those who opted for product B and those who were uncertain was 720, how many individuals were covered in the survey?

A. 1,200
B. 1,800
C. 3,600
D. 1,440
Explanation: 20% for A, 60% for B, \(100-(20+60)=20\%\) uncertain প্রশ্নমতে , \(60\%-20\%=720 \Rightarrow 40\%=720 \Rightarrow 100\%=1800\).]