1471 . Babul attended five tests during the semester and the average of his test scores was 87. If has average score after first three tests were 85, what was the average of his 4th and 5th test?

A. 88
B. 89
C. 90
D. 93
E. None of these

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Answer: Option C

Explanation:

Total of five test scores = 5 x 87 = 435

Total of first three test scores = 3 x 85 = 255

Total of last two test scores = 435 - 255 = 180

Therefore, averaage of 4th & 5th test scores = 180/2 = 90.

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1472 . Baki lives 2 miles west of Raju's house. Rafiq lives 3 mniles north of Raju's house and 2 miles west of Diba's house. What is the straight-line distance from Bakis's house to Diba's house?

A. 5 miles
B. 6 miles
C. 7 miles
D. 10 miles
E. None of these

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Answer: Option A

Explanation:

From pithagorous theorem,

Distance = root (4)² + (3)² = 5 miles

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1473 . Bangladeshi supporters in a stadium double every match. In the eighth match, there were 48000 supporters which was the full capacity of the stadium. In which match did the Bangladeshi supporter fill up half the capacity of the stadium?

A. 2nd match
B. 4th match
C. 6th match
D. 7th match

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Answer: Option D

Explanation:

প্রতিদিন সমর্থক দ্বিগুন হয়।তাই ৮ম দিনে ৪৮০০০ জন থাকলে সপ্তম দিনে সমর্থক ছিল ২৪০০০ জন যা স্টেডিয়ামের ধারণ ক্ষমতার অর্ধেক।

অতএব, সপ্তম দিনে স্টেডিয়ামের ধারণ ক্ষমতার অর্ধেক ছিল।

উত্তর : ৭ম ম্যাচ

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Sonali &amp- Janata Bank Ltd. Senior Officer (IT/ICT) 08.06.2018

A. 25
B. 34
C. 40
D. 46
E. None of these

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Answer: Option C

Explanation:

***The question is erroneous.

Let the number of each type stamps is S.

Now, 10 TK = 10 x 100 paisa = 1000 paisa

So, 20S + 30S = 1000

or, 50S = 1000

or, S = 100/50 = 20

So, the number of total stamps = 20 + 20 = 40

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1475 . Barkat/Murad bought equal numbers of 20-paisa and 30-paisa stamps. If the total cost of the stamps was Tk.10.00, what was the total number of stamps bought?

A. 25
B. 34
C. 40
D. 46

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Answer: Option C

Explanation:

Let, x is the number of 20 - poisa stamps.

Then the number of 30 - poisa stamps is x too.

Note that 10 taka = 1000 poisa.

Therefore, we obtain the following equation -

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1476 . Basar bought equal numbers of 50-paisa and 75-paisa stamps. If the total cost of the stamps was Tk. 50.00, what was the total number of stamps bought?

A. 25
B. 34
C. 40
D. 80
E. None of these

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Answer: Option D

Explanation:

let, equal number = x

atq,

0.75x + 0.50x = 50

or, 1.25x = 50

or, x = 40

total stamp = 40 + 40 = 80 stamp

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1477 . Basar bought equal numbers of 50-paisa and 75-paisa stamps. If the total costs of the stamps was Tk.50.00, what was the total number of stamps bought?

A. 25
B. 34
C. 40
D. 80

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Answer: Option D

Explanation:

let, equal number = x

atq,

0.75x + 0.50x = 50

or, 1.25x = 50

or, x = 40

total stamp = 40 + 40 = 80 stamp

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1478 . Bashar is twice as fast as Arif and Karim is three times as fast as Arif. If Bashar alone can complete a job in 12 days, how long will Bashar, Arif and Karim take to complete the same job together ?

A. 3 days
B. 4 days
C. 6 days
D. 8 days
E. None of these

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Answer: Option B

Explanation:

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1479 . BDT 385 has been divided among D,E,F in such a way that D receives $\frac{2}{9}$ th of what E and F together receive. In this case D' share is-

A. 77
B. 85
C. 70
D. 8022

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Answer: Option C

Explanation:

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

A. Tk 8,500
B. Tk 8,000
C. Tk 9,000
D. Tk 9,500
E. None of these

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Answer: Option B

Explanation:

Let, Original selling price be x

After increaseing 12% then the price x + 12 of x = 1.12x

Now, vat to be paid 10% of 1.12x = 0.112x

Need profit = 0.12x - 0.112x = 0.008x

According to question,

0.008x = 64

x = 8000 Tk.

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1481 . Bill and Ben can clean the garage. together in 6 hours. If it takes Bill 10 hours working alone, how long will it take Ben working alone?

A. 11 hours
B. 4 hours
C. 16 hours
D. 15 hours

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Answer: Option D

Explanation:

Let's use the concept of work rates to solve this problem.

Let B represent Bill's work rate (how much of the garage he can clean in one hour), and let C represent Ben's work rate.

According to the problem, Bill and Ben can clean the garage together in 6 hours, so their combined work rate is 1/6 of the garage per hour.

So, we can write the equation: B + C = 1/6

Now, it's given that Bill takes 10 hours to clean the garage alone, so his work rate is 1/10 of the garage per hour: B = 1/10

We want to find out how long it takes Ben to work alone, which means we need to find C.

Now, we can substitute B into the first equation: (1/10) + C = 1/6

To isolate C, we'll subtract 1/10 from both sides of the equation: C = 1/6 - 1/10

To subtract these fractions, we need a common denominator, which is 30: C = (5/30) - (3/30)

C = 2/30

Now, simplify the fraction: C = 1/15

So, Ben's work rate is 1/15 of the garage per hour, which means it would take him 15 hours to clean the garage alone. Therefore, the answer is 15 hours.

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সহকারী পরিচালক(AD) -12.11.2021

A. 17
B. 21
C. 4
D. 8

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Answer: Option D

Explanation:

দেওয়া আছে,

George এর cousin আছে 5 জন

অতএব, Bonnie এর = 5 + 11

= 16

তাহলে Robert 16/2

= 8

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প্রবেশনারি অফিসার | 02-04-2022

1483 . Bowl S contains only marbles. If $\frac{1}{4}$ of the marbles were removed, the bowl would be filled to $\frac{1}{2}$ of its capacity. If 100 marbles were added, the bowl would be full. How many marbles are in bowl S?

A. 100
B. 200
C. 250
D. 300

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Answer: Option B

Explanation:

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সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (10-11-2023)

A. 231
B. 1,155
C. 1,617
D. 693
E. None of these

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Answer: Option C

Explanation:

Bridgeport to cooperatown = Bridgeport to Danville + Danville to Cooperstown

= 924 + 3/4×924 = 1617

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1485 . Brighto soap powder is packed in cubeshaped cartons. A carton measures 10 cm on each side. The company has decided to increase the length of each edge of the carton by 10%. How much has the volume increased? (cc = cubic centimeters)

A. 10 cc
B. 21 cc
C. 100 cc
D. 331 cc

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Answer: Option D

Explanation:

Initial volume = 10³ cc = 1000 cc

New side length = 10 + 10% of 10 = 10 + 1 = 11

New volume = 11³ cc = 1331 cc

Increase in volume = 1331 - 1000 = 331 cc

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1471 . Babul attended five tests during the semester and the average of his test scores was 87. If has average score after first three tests were 85, what was the average of his 4th and 5th test?

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1472 . Baki lives 2 miles west of Raju's house. Rafiq lives 3 mniles north of Raju's house and 2 miles west of Diba's house. What is the straight-line distance from Bakis's house to Diba's house?

1473 . Bangladeshi supporters in a stadium double every match. In the eighth match, there were 48000 supporters which was the full capacity of the stadium. In which match did the Bangladeshi supporter fill up half the capacity of the stadium?

1474 . Barkat bought equal numbers of 2-paisa and 30-paisa stamps. If the total cost of the stamps was Tk. 10.00, what was the total number of stamps bought?

1475 . Barkat/Murad bought equal numbers of 20-paisa and 30-paisa stamps. If the total cost of the stamps was Tk.10.00, what was the total number of stamps bought?

1476 . Basar bought equal numbers of 50-paisa and 75-paisa stamps. If the total cost of the stamps was Tk. 50.00, what was the total number of stamps bought?

1477 . Basar bought equal numbers of 50-paisa and 75-paisa stamps. If the total costs of the stamps was Tk.50.00, what was the total number of stamps bought?

1478 . Bashar is twice as fast as Arif and Karim is three times as fast as Arif. If Bashar alone can complete a job in 12 days, how long will Bashar, Arif and Karim take to complete the same job together ?

1480 . Before the budget, a businessman had increased the price of his product by 12%. In the budget, a 10% sales tax (to be paid by the seller) was imposed on that product. As a result, the profit ultimately increased by Tk 64. What was the original selling price?

1481 . Bill and Ben can clean the garage. together in 6 hours. If it takes Bill 10 hours working alone, how long will it take Ben working alone?

1482 . Bonnie has twice as many cousins as Robert . George has 5 cousins, which is 11 less than Bonnie has. How many cousins does Robert have?

1484 . Bridgeport is 924 miles from Danville. The distance between Danville to coopertown is three-fourths of the distance from Bridgeport to Danville. How many miles is it from Bridgeport to Coopertown?

1485 . Brighto soap powder is packed in cubeshaped cartons. A carton measures 10 cm on each side. The company has decided to increase the length of each edge of the carton by 10%. How much has the volume increased? (cc = cubic centimeters)

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