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1. Sum of 2 numbes is 23 and the difference is 21. What is the smallest of the two numbers?

  • A. 4
  • B. 4
  • C. 4
  • D. 4

Answer: Option D

Explanation:

ধরি, বড় সংখ্যাটি x এবং ছোট সংখ্যাটি y

 x + y = 23
এবং, x - y = 21
( - ) ( + ) ( - )
( - ) করে 

 2y = 2

 y =
2
2

সুতরাং উত্তর হবে (d) None of these ।


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