2821 . The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

B. 1
C. 10
D. 19

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Answer: Option D

Explanation:

Hints : Average of 20 numbers = 0

sum of 20 numbers = (0 × 20) = 0

It is quite possible that 19 of these numbers may be positive and if their sum is a them 20th numbers is ( - a)

পূবালী ব্যাংক লিমিটেড || সিনিয়র অফিসার (30-09-2023) || 2023

প্রিমিয়াম প্ল্যান: ১ মাস

99 ৳

৩০ দিনের জন্য সকল লাইভ এবং আর্কাইভ মডেল টেস্ট, প্রশ্ন ব্যাংক ও লেকচার শিট সহ অ্যাপ এর প্রিমিয়াম সব এক্সেস পাবেন।

সাবস্ক্রিপশন লিংক

2822 . The average of 3 numbers is 24. If 2 of the number are 21 and 23,what is the 3rd number?

A. 20
B. 24
C. 26
D. 28
E. 30

View Answer	Favorite Question

Answer: Option D

Explanation:

Let, third number is x

so, (x + 21 + 33)/3 = 24

বা, x = 72 - 44 = 28.

Bangladesh Bank - Assistant Director - 2006

A. 15
B. 17
C. 19
D. 21

View Answer	Favorite Question

Answer: Option D

Explanation:

given, average of 3 numbers is 7

and 2 of the numbers are zero

let the 3rd number is x

According to the question,

(x + 0 + 0)/3 = 7

or, x = 21

ans: 21

Sonali- Janata- Agrani &amp- Rupali Bank Ltd. Senior Officer Recruitment 14.03.2008

A. 5m
B. m+3
C. m+2
D. nm+2

View Answer	Favorite Question

Answer: Option C

Explanation:

মনেকরি, m দিয়ে শুরু হওয়া 5টি ধারাবাহিক পূর্ণ সংখ্যা যথাক্রমে,m,m + 1,m + 2,m + 3,m + 4
এদের গড় = m + 2
[মধ্যবর্তী সংখ্যা] .:. n = m + 2

সমন্বিত ৪ ব্যাংক - সহকারী প্রোগ্রামার - 25.09.2020

A. 8.7
B. 30.1
C. 30.3
D. 34.6

View Answer	Favorite Question

Answer: Option D

Explanation:

প্রথম number - এর সমষ্টি (40×540×5)  =  200
পরের 2 টি " " " ( 21×2 21×2 )  =  42 
∴∴ 7 টি number - এর সমষ্টি (200   +   42)  =  242
∴∴ 7 টি " " গড়(242÷7242÷7)  =  34.57

2826 . The average of 5 positive integers is 60. If the average of 3 of these integers is 67, what is the greatest possible value that one of the other two integers can have?

A. 98.5
B. 63.5
C. 99
D. 98
E. Cannot be determined

View Answer	Favorite Question

Answer: Option D

Explanation:

Sum of three numbers = 67 × 3 = 201

So, if the other two integers are x and y

( 201 + x + y) / 5 = 60

x + y = 99

2827 . The average of 5 quantities is 6 . The average of 3 of them is 8 . What is the average of the remaining two numbers ?

A. 6.5
B. 4
C. 3
D. 3.5
E. None of these

View Answer	Favorite Question

Answer: Option C

Explanation:

Total of 5 = 6 × 5 = 30

Total of 3 = 8 × 3 = 24

( - ) Total of 2 = 6

Avg of = 3

Bangladesh Bank - Assistant Director - 2009

A. 28.32
B. 28.78
C. 29.27
D. 29.68

View Answer	Favorite Question

Answer: Option D

Explanation:

পূবালী ব্যাংক লিমিটেড || জুনিয়র অফিসার (30-09-2023) || 2023

A. 8
B. 9
C. 11
D. 1

View Answer	Favorite Question

Answer: Option A

Explanation:

2830 . The average of 6 numbers is 25. If 3 more numbers with an average of 22 are added to these numbers, what will be the average of the combined 9 numbers?

A. 20
B. 22
C. 24
D. 25

View Answer	Favorite Question

Answer: Option C

Explanation:

The average of 6 numbers is 25
The Total of 6 numbers is = 25×6 = 150
The average of 3 numbers is 22
The Total of 3 numbers is = 22×3 = 66
The Total of (6 + 3) = 9 numbers is = (150 + 66) = 216

The average of 9 numbers is = 216/9 = 24
ans: 24

Three Combined Bank Recruitment - Senior Officer 03 .08.2018 ||

A. 15
B. 30
C. 42
D. 9

View Answer	Favorite Question

Answer: Option D

Explanation:

6 টি নাম্বার এর সমষ্টি ( 6×7) = 42

3 টি নাম্বার এর সমষ্টি ( 3 ×5) = 15

( - ) বিয়োগ করে,

3 টি নাম্বার এর সমষ্টি = 27

Average = 27/3

= 9

2832 . The average of 6 numbers is 8.5, when one number is discarded the average of the remaining numbers becomes 7.2. What is the discarded number?

A. 7.8
B. 9.8
C. 15.0
D. 12.4
E. none of them

View Answer	Favorite Question

Answer: Option C

Explanation:

6 টি নাম্বার এর সমষ্টি ( 6×8.5) = 51

5 টি নাম্বার এর সমষ্টি ( 5 ×7.2) = 36

( - ) বিয়োগ করে, = 15

Discarded সংখ্যাটি = 15

2833 . The average of 6 numbers is 8.5. When one number is discarded, the average of the remaining numbers becomes 7.2. What is the discarded number?

A. 7.8
B. 9.8
C. 10.0
D. 15

View Answer	Favorite Question

Answer: Option D

Explanation:

6 টি নাম্বার এর সমষ্টি ( 6×8.5) = 51

5 টি নাম্বার এর সমষ্টি ( 5 ×7.2) = 36

( - ) বিয়োগ করে, = 15

Discarded সংখ্যাটি = 15

2834 . The average of 7 consecutive number is 20. The largest of these number is:

A. 20
B. 22
C. 23
D. 24

View Answer	Favorite Question

Answer: Option C

Explanation:

The seven Consecutive numbers can be x, x + 1, x + 2, x + 3, x + 4, x + 5, x + 6 . ∴ The answer is 23

2835 . The average of 7 consecutive numbers is 20. The largest of these number is ---

A. 23
B. 22
C. 20
D. 24

View Answer	Favorite Question

Answer: Option A

Explanation:

ধরি, সংখ্যাগুলো, x - 3, x - 2, x - 1, x + 1, x + 2, x + 3

x - 3 + x - 2 + x - 1 + x + x + 1 + x + 2 + x + 3/7 = 20

7x/7 = 20

x = 20

বৃহত্তম সংখ্যাটি = x + 3 = 20 + 3 = 23

2821 . The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

2822 . The average of 3 numbers is 24. If 2 of the number are 21 and 23,what is the 3rd number?

2823 . The average of 3 numbers is 7. If 2 of the numbers are zero, then what is the 3rd number?

2824 . The average of 5 consecutive number integers starting with m as the first integers is n then n = ?

2825 . 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 numbers?

2826 . The average of 5 positive integers is 60. If the average of 3 of these integers is 67, what is the greatest possible value that one of the other two integers can have?

2827 . The average of 5 quantities is 6 . The average of 3 of them is 8 . What is the average of the remaining two numbers ?

2828 . The average of 50 numbers is 30. If two numbers, 35 and 40, are discarded, then the average of the remaining numbers is nearly.

2829 . The average of 6, 8 and 10 equals the average of 7, 9 and --

2830 . The average of 6 numbers is 25. If 3 more numbers with an average of 22 are added to these numbers, what will be the average of the combined 9 numbers?

2831 . The average of 6 numbers is 7. The average of three numbers of them is 5. What will be the average of remaining numbers?

2832 . The average of 6 numbers is 8.5, when one number is discarded the average of the remaining numbers becomes 7.2. What is the discarded number?

2833 . The average of 6 numbers is 8.5. When one number is discarded, the average of the remaining numbers becomes 7.2. What is the discarded number?

2834 . The average of 7 consecutive number is 20. The largest of these number is:

2835 . The average of 7 consecutive numbers is 20. The largest of these number is ---

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