1891 . If 6 students have an average (arithmetic mean) score of 88 on an exam, and one of those students scored a 93 on the exam, what is the average score on this exam for the other 5 students?

A. 84
B. 85
C. 86
D. 87

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Answer: Option D

Explanation:

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Dhaka Bank Ltd | Probationary Officer | 05-02-2021

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1892 . If 6 workers can complete 9 identical job in 3 days, how long (in days) will it take 4 workers to complete 10 such jobs?

A. 5
B. 4
C. 6
D. 3

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Answer: Option A

Explanation:

6 workers - 9 jobs in 3 days
In one day 6 workers can do 3 jobs
In one day 1 worker can do 0.5 job
4 workers can so 2 jobs in a day
So. They can do 10 jobs in 5 days

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1893 . If 6 workers can complete 9 identical jobs in 3 days, how long (in days) will it take 4 workers to complete 10 such jobs?

A. 5
B. 4
C. 6
D. 3
E. None of these

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Answer: Option A

Explanation:

6 workers - 9 jobs in 3 days
In one day 6 workers can do 3 jobs
In one day 1 worker can do 0.5 job
4 workers can so 2 jobs in a day

So. They can do 10 jobs in 5 days

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1894 . If 6.4 is 80 percent of 20 percent of a certain number, what is the number/

A. 9
B. 36
C. 40
D. 81

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Answer: Option C

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সমন্বিত ৫ ব্যাংক || অফিসার (ক্যাশ) (11-03-2022)

A. 65
B. 108
C. 180
D. 270

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Answer: Option B

Explanation:

Area of rectangular RUG = (base)(height) = (9)(12) = 108

This RUG covers 60% of the FLOOR

In other words, 108 = 60% of the area of the FLOOR

Or we can write: 108 = 0.6(area of FLOOR)

So, 108 /0.6 = area of FLOOR

Evaluate to get: 180 = area of FLOOR

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1896 . If 6121135 represents 'flame' then 21215120 represents __

A. voice
B. bald
C. bloat
D. castle

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Answer: Option C

Explanation:

2nd alphabet - B

12th alphabet - L

15th alphabet - O

1st alphabet - A

20th alphabet - T

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Bangladesh bank - officer ( general) - 27.04.2018

A. x < 2
B. x > 8
C. x < 8
D. x > -8

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Answer: Option D

Explanation:

6x-14<8x+2

-14-2<8x-6x

-16<2x

-8

So, x>-8

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1898 . If 6x-14<8x+2, which of the following must be true ?

A. x<2
B. x>8
C. x<8
D. x>-8
E. None of these

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Answer: Option D

Explanation:

6x-14<8x+2

-14-2<8x-6x

-16<2x

-8

So, x>-8

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1899 . If 7 workers can assemble a car in 8 hours, how long it would take 12 workers to assemble the same car?

A. $3 h o u r s$
B. $3 \frac{1}{2} h o u r s$
C. $4 \frac{2}{3} h o u r s$
D. $5 h o u r s$

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Answer: Option A

Explanation:

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Uttara Bank PLC || Probationary Officer (09-11-2024) || 2024

A. 2
B. 7
C. 8
D. all of these

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Answer: Option A

Explanation:

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গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক | ২০.০৪.২০১৮

1901 . If $(7^{a}) (7^{b}) = 7^{c} 7^{d},$ what is d in term of a b and c ?

A. $3 / a b$
B. $c - a - b$
C. $a + b - c$
D. $c - a b$

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Answer: Option D

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অফিসার (জেনারেল) - 12.11.2021

A. 33.33%
B. 20%
C. 4%
D. 25%

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Answer: Option A

Explanation:

Remaining men = 8 - 2 = 6

8 men can do the job in 12 days

So, 6 men can do te job in 12×8/6 = 16 days

Increase percentage in number of days = (16 - 12) / 12 × 100% = 33.33%

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1903 . If 8 men can reap 801 hectares in 24 days, then dhow many hectares can 36 men reap in 30 days?

A. 350
B. 400
C. 450
D. 425

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Answer: Option C

Explanation:

8 men in 24 days reap 80 hectares

∴1 men in 1 days reap 80/(8×24) hectares

∴36 men in 30 days reap (80×36×30)/(24×8) hectares

= 450 hectares

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1904 . If 8x+8y=64, what is the average of x and y?

A. 16
B. 64
C. 8
D. 4

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Answer: Option D

Explanation:

x এবং y এর গড় অর্থাৎ (x + y)/2 এর মান বের করতে হবে ।

এখন, 8x + 8y = 64

= > 8 (x + y) = 64

= > 8(x + y)/16 = 64/16 [ 16 দ্বারা উভয় পক্ষকে ভাগ করে ]

= > (x + y)/2 = 4

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1905 . If 8x + 8y = 64, what is the average of x and y?

A. 16
B. 4
D. 1

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Answer: Option B

Explanation:

x এবং y এর গড় অর্থাৎ (x + y)/2 এর মান বের করতে হবে ।

এখন, 8x + 8y = 64

= > 8 (x + y) = 64

= > 8(x + y)/16 = 64/16 [ 16 দ্বারা উভয় পক্ষকে ভাগ করে ]

= > (x + y)/2 = 4

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1891 . If 6 students have an average (arithmetic mean) score of 88 on an exam, and one of those students scored a 93 on the exam, what is the average score on this exam for the other 5 students?

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1892 . If 6 workers can complete 9 identical job in 3 days, how long (in days) will it take 4 workers to complete 10 such jobs?

1893 . If 6 workers can complete 9 identical jobs in 3 days, how long (in days) will it take 4 workers to complete 10 such jobs?

1894 . If 6.4 is 80 percent of 20 percent of a certain number, what is the number/

1895 . If 60% of a rectangular floor is covered by a rectangular rug of 9 feet by 12 feet, what is the area in square feet of the floor?

1896 . If 6121135 represents 'flame' then 21215120 represents __

1897 . If 6x - 14 < 8x + 2 which of the following must be true?

1898 . If 6x-14<8x+2, which of the following must be true ?

1900 . If 7> x > 2 and 3 < x < 8, which of the following best describes x?

1902 . If 8 men can do a job in 12 days, what is the percentage increase in the number of days required to do the job when 2 men are released?

1903 . If 8 men can reap 801 hectares in 24 days, then dhow many hectares can 36 men reap in 30 days?

1904 . If 8x+8y=64, what is the average of x and y?

1905 . If 8x + 8y = 64, what is the average of x and y?

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