1321 . A Zoo keeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo ?

A. 40
B. 50
C. 60
D. 30
E. None of these

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Answer: Option B

Explanation:

Let the number of horse is x

then pigeons are (80 - x)

A/Q,

4x + 2(80 - x) = 260

4x + 160 - 2x = 260

2x = 260 - 160

2x = 100

x = 50

The number of horses is 50.

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Bangladesh Bank - Assistant Director - 2009

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1322 . A zookeeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be260. If the zoo had either pigeons or horses, how many horses were there in the zoo?

A. 40
B. 30
C. 50
D. 60

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Answer: Option C

Explanation:

Let the number of horse is x

then pigeons are (80 - x)

A/Q,

4x + 2(80 - x) = 260

4x + 160 - 2x = 260

2x = 260 - 160

2x = 100

x = 50

The number of horses is 50

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1323 . A. B and C are partners in a business. Their shares are in the proposition of $\frac{1}{3} : \frac{1}{4} : \frac{1}{5}$ A withdraws half of his capital after 15 months and after another 15 months, a profit of Tk. 4340 is divided. The share of C is-

A. Tk. 1240
B. Tk. 1250
C. Tk. 1300
D. Tk. 1400

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Answer: Option A

Explanation:

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Janata Bank PLC || Officer (Rural Credit) (27-10-2023) || 2023

A. 160
B. 150
C. 130
D. 110

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Answer: Option C

Explanation:

The variable cost at 40 units production is 4000 and at 46 units is around 4800 – the graph is almost a straight line between these two points. Thus the marginal cost of increasing production from 40 units =

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Bangladesh Bank - Officer - 2015

A. 24
B. 9
C. 18
D. 15

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Answer: Option D

Explanation:

Area of the square = 3^2=9

Area of the rechangle = 4×6=24

∴Area of region outside of ABCD & inside of EFGH=24 - 9 = 15

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1326 . ABCDEFGHIJKLMNOPQ RSTUVWXYZ. Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet?

A. X
B. W
C. 1
D. H

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Answer: Option B

Explanation:

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আশুগঞ্জ পাওয়ার স্টেশন কোম্পানী লিঃ (APSCL) || সহকারী প্রকৌশলী (মেকানিক্যাল ও ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স) (27-09-2024) || 2024

A. Loss of Tk 1.78
B. Loss of Tk. 1.50
C. Gain of Tk. 3.20
D. Gain of Tk 7.30
E. None of these

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Answer: Option C

Explanation:

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বাংলাদেশ বনশিল্প উন্নয়ন কর্পোরেশন সহকারী ব্যবস্থাপক-০২.০৮.২০১৩

A. 7 unit
B. 14 unit
C. 17 unit
D. 21 unit

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Answer: Option B

Explanation:

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

A. 920
B. 1,100
C. 1,110
D. 1,030
E. 1,490

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Answer: Option C

Explanation:

Health insurance = 750 firms

Dental insurance = 640 firms

Both Health and Dental insurance = 280 firms

Either Health insurance or Dental Insurance = (750 + 640 - 280) = 1110 firms

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Bangladesh Bank - Assistant Director - 2006

A. 12%
B. 10%
C. 13%
D. 14%

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Answer: Option C

Explanation:

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1331 . Afia can do her term paper in 15 days which takes Babul 20 days to finish . What is the fraction of work left if both afia & Babul work together for 4 days?

A. 1/4
B. 1/10
C. 7/15
D. 8/15
E. None of these

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Answer: Option D

Explanation:

In 15 days Afia does 1 portion

In 4 days Afia does 4/15 portion

Again, In 20 day's Babul does 1 portion

In 4 days Babul does 4 /20 portion

Afia and Babul work together in 4 days

= 4/15 + 4/20 = 7/15 portion

left = 1 - 7/15 = 8/15 portion.

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1332 . Afroza is 10 years younger than Firoza. If in 5 years, Firoza will be twice as old as Afroza.How old will Afroza be in 3 years?

A. 12
B. 7
C. 10
D. 8

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Answer: Option D

Explanation:

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SBAC Bank PLC || Trainee Junior Officer (28-09-2024) || 2024

A. 30%
B. 25%
C. 20%
D. 35%

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Answer: Option C

Explanation:

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Probashi Kallyan Bank-Officer (Cash)-25-09-2021

A. 2.7
B. 3.1
C. 3.3
D. 3.4
E. 3.5

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Answer: Option D

Explanation:

In 3 semester total GPA = 3 × 3 = 9

In 4 semester total GPA = 4 × 3.1 = 12.4

In 4th semester GPA required = 12.4 - 9 = 3.4

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Bangladesh Bank - Assistant Director - 2009

A. 20
B. 8
C. 5
D. 3.2

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Answer: Option B

Explanation:

২য় বাউন্সের পরে উঠবে =২/৫ × ১২৫

৩য় বাউন্সের পরে উঠবে = ২/৫ × ২/৫ × ১২৫

৪র্থ বাউন্সের পরে উঠবে = ২/৫ × ২/৫ × ২/৫ × ১২৫ = ৮

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Sonali Bank Ltd. Senior Officer Recruitment 01.06.2018

1321 . A Zoo keeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo ?

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1322 . A zookeeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be260. If the zoo had either pigeons or horses, how many horses were there in the zoo?

1324 . ABC Ltd. is considering increasing the production level . What is the approximate marginal cost of increasing production form its July level of 40 units to 41 units?

1325 . ABCD is a square, EFGH is arectangle, AB = 3, EF = 4, FG = 6. Determine the area of the region outside of ABCD and inside of EFGH.

1326 . ABCDEFGHIJKLMNOPQ RSTUVWXYZ. Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet?

1327 . Abu sold his cricket bat for tk 160 and his ball for tk 96. He made a profit of 20% on his ball and took a 10% loss on his cricket bat . He ended up with a-

1328 . AC, a diagonal of the rectangle ABCD, measures 5 units. The area of the rectangle is 12 square units. What is the perimeter of the rectangle?

1329 . According to a survey of business firms in a certain city, 750 firms offer their employees health insurance , 640 offer dental insurance and 280 offer health insurance and dental insurance. How many firms offer their employees health insurance or dental

1330 . According to the recent Bangladesh Bank's order, what can be the maximum lending rate of a Commercial Bank?

1331 . Afia can do her term paper in 15 days which takes Babul 20 days to finish . What is the fraction of work left if both afia & Babul work together for 4 days?

1332 . Afroza is 10 years younger than Firoza. If in 5 years, Firoza will be twice as old as Afroza.How old will Afroza be in 3 years?

1333 . Afte getting two successive discounts, a shirt with a list price of 150 taka is available at 105 taka. If the second discount is 12.5% fins the first discount?

1334 . After 3 semesters in college , jim has a 3.0 GPA. What GPA must jim attain in his fourth semesters if he wishes to raise his GPA to a 3.1 ?

1335 . after been dropped a certain ball always bounces back to 2/5 of the height of its previous bounce.after the first bounce it reaches a height of 125 inches .how heigh will it reach after four bounce

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