Subject
Bank Exam
Topic
EXIM Bank Ltd. - Trainee Assistant Officer - 2018
Sum of 2 numbers is 23 and the difference is 21. What is the smaller of the two numbers ?
Sum of 2 numbers is 23 and the difference is 21. What is the smaller of the two numbers ?
ক)
4খ)
3গ)
2ঘ)
None of theseExplanation
Solution: প্রশ্নে বলা হচ্ছে যে, দুটি সংখ্যার সমষ্টি 23 এবং বিয়োগফল 21 হলে ছোট সংখ্যাটি কত ? ধরি, বড় সংখ্যাটি x এবং ছোট সংখ্যাটি y প্রশ্নমতে, x + y = 23 ........ (1) x - y = 21 .......... (2) (1) এবং (2) নং সমীকরণ যোগ করি x + y = 23 x - y = 21 _______________ 2x = 44 => x = 44/2 = 22 এখন x এর মান (1) নং সমীকরণে বসাই x + y = 23 => 22 + y = 23 => y = 23 - 22 = 1 অর্থাৎ ছোট সংখ্যাটি 1Related questions
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