3
2
4
5
Source: বাংলাদেশ পেট্রোলিয়াম ইনস্টিটিউট (সহকারী পরিচালক) 18-12-2020
Answer: 3
Explanation:
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You should read | Questions
The average of the first nine -prime numbers is:
In a class, average mark in an exam is 70. The average of student of student who scored below 6o is 50. The avearge of srudents who scrord 60 or more is 75 It the total number of students in this calss is 20, how many students scored 60 or more?
If the average marks of three batches of 55,60 and 45 students respectively is 50,55 and 60, then the average marks of all the students is:
১ হতে ৫০ পর্যন্ত বেজোড় সংখ্যাগুলোর গড় কত?
A retail buyer purchase 15 white dress shirts for Tk. 1000 and 5 striped dress shirts Tk. 400. At what average price the retailer should sell a dress shirt if he wants to make a proftit of Tk. 50 each shirt?
একসেট সংখ্যা থেকে ৩৫ সংখ্যাটি বাদ দেয়ার ফলে সেটের গড় ১৪ থেকে ১১ হয়ে গেল। সেটের সদস্য সংখ্যা কত ছিল?
A man covers a total distance of 100 km on bicycle . For the first 2 hours, the speed was 20 km/hr and for the rest of the journey , it came down to 10 km/hr. The average speed will be
The electric company charges Tk. 0.30 per kilowatt-hour (KWH). Rahim used 2800 KWH in April, 3200 KWH in May, and 3600 KWH in June. What was his average cost of electricity for the 3 months?
The total of 10 number is 462; the average of the first 4 numbers is 52; the average of the last 5 numbers is 38. What is the fifth number?
A delivery cart went from Candle ford to Lark Rise and back at an average speed of 2/3 miles per hour. If the distance from Candle ford to Lark Rise is 1 mile, and the trip back took half as much time as the trip there, what was the average speed of the delivery cart on the way to Lark Rise?
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You should read | Topic
গানের রচয়িতা ও সুরকার
ইনপুট ও আউটপুট ডিভাইস
শব্দের প্রকারভেদ ও উৎস
শতকরা ও লাভ-ক্ষতি (Percentage and Profit and loss)
সংখ্যা পদ্ধতি
সাধু ও চলিত রীতি
গড় (Average)
পরিভাষা
বাংলা সাহিত্যের বিবিধ প্রশ্ন
ট্রেন ও গতিবেগ (Train & Speed)
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