5
6
8
9
Source: ডাক বিভাগের পোস্টাল অপারেটর-০৩.০৬.২০১৬
Answer: 8
Explanation:
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প্রথম ও দ্বিতীয় সংখ্যার গড় ২৫। প্রথম, দ্বিতীয় ও তৃতীয় সংখ্যার গড় ৩০ হলে, তৃতীয় সংখ্যাটি কত?
The average of the three numbers x , y and z is 45 , x is greater than the average of y and z by 9. The average of y and z is greater than y by 2 .Then the difference of x and z is:
If w+x=-4 , x+y=25 and y+w=15, the the average of w, x,y is:
The average weight of 39 students is 30 kg. By the admission of a new student, the average comes down to 29.8 kg. Find the weigth of the new student.
A train went 300 miles from X to Y at an average speed of 80 mph. At what speed did it travel on the way back it its average speed for the whole trip was 100 mph?
একটি গাড়ি ঘন্টায় ২৫ মাইল বেগে ২ ঘন্টা চলার পর পরবর্তী ৪ ঘন্টায় ৫২ মাইল পথ অতিক্রম করে। সম্পূর্ণ পথে গাড়ির গড় গতিবেগ কত?
The average daily income of Mr. A and Mr. B is Tk. 350, of Mr. B and Mr. C is Tk. 365, and of Mr. A and Mr. C is Tk. 340. What is the weekly income of Mr. A if he works 5 days in a week?
In a certain office, the human resources department reports that 60% of the employees in the office commute over an hour on average each day, and that 25% of those employees who commute over an hour an average each day commute by train. If an employee at the office is selected at random, what is the probability that the employee commutes over an hour on average by train?
Reza's average in four tests is 80% . what marks does he need in his fifth test to raise his average to 84% .
The average wage of a worker during a fortnihgt comprising 15 consecutive working days was Taka 90 per day. During the first 7 days, his average wage was Taka 87 per day and the average wage during the last 7 days was Taka 92 per day. What was his wage on the 8th day ?
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You should read | Topic
কবিতা ও কাব্যগ্রন্থ
বাগধারা
সাধু ও চলিত রীতি
বাংলা সাহিত্যে প্রথম
Parts of Speech
বানান শুদ্ধিকরণ
বাংলা সাহিত্যের বিবিধ প্রশ্ন
উপসর্গ
বাংলা সাহিত্যের আধুনিক যুগের সূচনা
অনুপাত - সমানুপাত (Ratio -Proportion)
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