Subject
Bank Exam
Topic
United Commercial Bank Ltd. - Probationary Officer - 2016
The average of 5 numbers is 40. If 2 more numbers, with an average of 21, are added to these numbers, what will be the average of the combined 7 numbers ?
The average of 5 numbers is 40. If 2 more numbers, with an average of 21, are added to these numbers, what will be the average of the combined 7 numbers ?
ক)
8.73খ)
30.17গ)
30.35ঘ)
34.57Explanation
Solution: অনুবাদঃ 5 টি সংখ্যার গড় 40. যদি 21 গড় বিশিষ্ট আরো নতুন দুটি সংখ্যা যোগ করা হয়, তবে 7 টি আরো নতুন দুটি সংখ্যা যোগ করা হয়, তবে 7 টি সংখ্যার গড় কত হবে ? 5-টি সংখ্যার সমষ্টি = 5 40 = 200 অপর দুটি সংখ্যার সমষ্টি = 21 2 = 42 7-টি সংখ্যার সমষ্টি 7-টির গড় = 242/7 = 34.57 Shortcut:Related questions
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