676 . A, B and C can complete a pice of work in 24, 6 and 12 days respectively. Working together, they will be complete the same work in:

A. 1/24 days
B. 7/24 days
C. 24/7 days
D. 4 days

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Answer: Option C

Explanation:

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

A. Tk. 200
B. Tk. 150
C. Tk. 100
D. Tk. 300

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Answer: Option B

Explanation:

ধরি, মোট বিনিয়োগ x টাকা

A বিনিয়োগ করে x/3 টাকা

B + C = ( x - x/3) = 2x/3

কিন্তু, B এর বিনিয়োগ পরিমান A ও C এর মোট বিনিয়োগের সমান।

x/3 + C + C = 2x/3

2C = 2x/3 - x/3

2C = x/3

C = x/6 এবং B = 2x/3 - x/6 = 3x/6 = x/2

A : B : C = x/3 : x/2 : x/6 = 2 : 3 : 1

C এর লাভের পরিমাণ ( 900 এর 1/3 + 2 + 1) = (900 এর 1/6) = 150 টাকা

678 . A, B and C enter into partnership with investments in the ratio of 5 : 7 : 8. If at the end of the year A's share of profit is Tk.42360, ow much is the total profit?

A. Tk.169440
B. Tk.183000
C. Tk.196700
D. Tk.168440

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Answer: Option A

Explanation:

A's profit = 42,360 = 5x

therefore x = 42,360/5 = 8472

total profit = 5x + 7x + 8x = 20x = 20*8472

total profit = 1,69,440 tk.

679 . a, b and c positive integers. If b equals the square root of a, and if c equals the sum of a and b, which of the following could he the value of c?

A. 21
B. 30
C. 45
D. 331

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Answer: Option B

Explanation:

680 . A, B and C started a job which they can complete in 2 days. B can do the job in 5 days and C can do it in 4 days. After working for 1 day, both B and C left. How long would it take A to complete the rest of the job?

A. 20 days
B. 30 days
C. 4 days
D. 10 days

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Answer: Option D

Explanation:

681 . A, B C center into partnership with investments in the ratio of 5:7:8. If at the end of the year A's share of profit is Tk. 42360, how much is the total profilt?

A. Tk. 169,440
B. Tk. 183,000
C. Tk. 196,700
D. Tk. 168,440

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Answer: Option A

Explanation:

মনে করি, A, B, C এর বিনিয়োগের পরিমাণ যথাক্রমে

5x, 7x, 8x

বিনিয়োগগুলোর যোগফল = 5x + 7x + 8x = 20x

A এর 5x অংশের মুনাফা হয় 42360 টাকা

সম্পূর্ণ 20x অংশের মুনাফা হয় ( 42360 × 20x) /5x = 169440 টাকা

682 . A, P, R, X, S and Z are sitting in a row. S and Z are in the centre, and A and P are at the ends, R is sitting on the left of A. Then who is sitting on the right of P?

A. X
B. S
C. A
D. Z

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Answer: Option A

Explanation:

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

A. Tk. 140
B. Tk. 160
C. Tk. 180
D. Tk. 220

View Answer	Favorite Question

Answer: Option B

Explanation:

Hints: Hire charges paid by B = 520 × 8/7 + 8 + 11 = 160 TK

684 . A,B and C enter into partnership. A invests some money at the beginning, B invest double the amount after 6 months and C invests thrice the amount after 8 months. If the annual profit be Tk. 27,000, C's share is:

A. Tk. 11,250
B. Tk. 8,625
C. Tk. 9,000
D. Tk. 10,800

View Answer	Favorite Question

Answer: Option C

Explanation:

To find C's share of the annual profit, we'll first calculate the individual contributions of A, B, and C based on their investment durations.

Let's assume A's initial investment is "x" Tk. Since B invests double the amount after 6 months, B's investment at the beginning was "2x" Tk, and C invests thrice the amount after 8 months, so C's investment at the beginning was "3x" Tk.

Now, we need to consider the time each partner's money is invested:

A's money is invested for 12 months (the whole year).
B's money is invested for 6 months (half a year).
C's money is invested for 4 months (12 months - 8 months).
Now, let's calculate their shares of the profit based on their investments:

A's share = (A's investment duration / Total investment duration) * Total profit A's share = (12 / 12) * 27,000 = 27,000 Tk

B's share = (B's investment duration / Total investment duration) * Total profit B's share = (6 / 12) * 27,000 = 13,500 Tk

C's share = (C's investment duration / Total investment duration) * Total profit C's share = (4 / 12) * 27,000 = 9,000 Tk

So, C's share of the annual profit is Tk. 9,000.

685 . A 10% monthly salary increase resulted in a TK. 9000 per year increase in salary for an employee. What was his monthly salary before the increase?

A. Tk. 5000
B. Tk. 9000
C. TK. 7500
D. TK. 12000

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Answer: Option C

Explanation:

Yearly increase = 9000 tk

Monthly increase = 9000/12 = 750 tk

10% of Salary is = 750 tk

100% of Salary is = (750×100)/10 = 7500 tk .

Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 6 minutes
B. 7 minutes
C. 8 minutes
D. 9 minutes
E. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

Hints: tub টি ভরতে আরো পানি লাগবে (12 - 3) gallons = 9 gallons

1 মিনিটে পূর্ণ হয় ( 3 - 1.5) gallons = 1.5 gallos

1.5 gallons পূর্ণ হয় 1 মিনিটে

9 gallons পূর্ণ হয় 9/1.5 মিনিটে = 6 মিনিটে

687 . A 2 feet wide circular path is created around a circular field with a radious of r feet. Find the value of r, in feet, if the area of the field including the path is twice that of the field alone?

A. 2 + 2√2
B. 4√2
C. 6√2
D. 2√2

View Answer	Favorite Question

Answer: Option A

Explanation:

688 . A 20% reduction in price allows a customer to purchase 5 kgs of rice at Tk. 160. How much would have to pay if there was no discount?

A. Tk. 180
B. Tk. 200
C. Tk. 210
D. Tk. 240
E. None of them

View Answer	Favorite Question

Answer: Option B

Explanation:

689 . A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4- digit number 13b7, which is divisible by 11. Then, (a+b)=?

A. 10
B. 11
C. 12
D. 15
E. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

690 . A 40-meter long rope is cut into two unequal pieces. If one piece is 18 meter longer than the other, what is the length ( in meter ) of the shorter piece ?

A. 10
B. 11
C. 18
D. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

Let,

shorter length = X

∴ Bigger length = X + 18

ATQ,

X + (X + 18) = 40

2x + 18 = 40

2x = 40 - 18

2x = 22

∴ x = 11

Bangladesh Bank - Officer - 2001

676 . A, B and C can complete a pice of work in 24, 6 and 12 days respectively. Working together, they will be complete the same work in:

677 . A, B and C enter into a partnership. A contributes one-third of the capital while B contributes as much as A and C together contribute. If the profit at the end of the year amounts to Tk. 900, What would C receive?

678 . A, B and C enter into partnership with investments in the ratio of 5 : 7 : 8. If at the end of the year A's share of profit is Tk.42360, ow much is the total profit?

679 . a, b and c positive integers. If b equals the square root of a, and if c equals the sum of a and b, which of the following could he the value of c?

680 . A, B and C started a job which they can complete in 2 days. B can do the job in 5 days and C can do it in 4 days. After working for 1 day, both B and C left. How long would it take A to complete the rest of the job?

681 . A, B C center into partnership with investments in the ratio of 5:7:8. If at the end of the year A's share of profit is Tk. 42360, how much is the total profilt?

682 . A, P, R, X, S and Z are sitting in a row. S and Z are in the centre, and A and P are at the ends, R is sitting on the left of A. Then who is sitting on the right of P?

683 . A,B,C hired a car for Tk. 520 and used it for 7,8 and 11 hours respectively. Hire charges paid by B were :

684 . A,B and C enter into partnership. A invests some money at the beginning, B invest double the amount after 6 months and C invests thrice the amount after 8 months. If the annual profit be Tk. 27,000, C's share is:

685 . A 10% monthly salary increase resulted in a TK. 9000 per year increase in salary for an employee. What was his monthly salary before the increase?

686 . A 12 gallon tub has a faucet that lets water in at a rate of 3 gallons per minute, and has a drain that lets water out at a rate of 1.5 gallons per minute. If you start with 3 gallons of water in the tub, how long will it take to fill the tub completely?

687 . A 2 feet wide circular path is created around a circular field with a radious of r feet. Find the value of r, in feet, if the area of the field including the path is twice that of the field alone?

688 . A 20% reduction in price allows a customer to purchase 5 kgs of rice at Tk. 160. How much would have to pay if there was no discount?

689 . A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4- digit number 13b7, which is divisible by 11. Then, (a+b)=?

690 . A 40-meter long rope is cut into two unequal pieces. If one piece is 18 meter longer than the other, what is the length ( in meter ) of the shorter piece ?

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