1066 . A rectangular carpet, that is 9 feet by 12 feet, covers 60% of a rectangular floor. What is the area of the floor?

A. 300 square feet
B. 180 square feet
C. 108 square feet
D. 64.8 square feet

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Answer: Option B

Explanation:

Area of the carpet = 9 x 12 = 108 sq ft

60% of the floor = 108 sq ft

So, total or 100% floor area = 108 x 100 / 60 = 180 sq ft

1067 . A rectangular field will be fenced on three sides leaving a side of 20 feet uncovered. If the area on the filed is 680 squares feet, how many feet of fencing will be required?

A. 88
B. 34
C. 40
D. 68

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Answer: Option A

Explanation:

বিসিআইসি | সহকারী প্রকৌশলী (কমার্শিয়াল) | 10-12-2021 || 2021

A. 18π
B. 18/π
C. π/18
D. 9/2π

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Answer: Option B

Explanation:

ধরি, Cylindrical container এর উচ্চতা h মিটার

এবং, ব্যাসার্ধ r = 10/2 মিটার = 5 মিটার

π(5)2 × h = 25 × 9 × 2

h = 25 × 9 × 2 /25π

h = 18/π

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

A. Tk. 160
B. Tk. 240
C. Tk. 480
D. None of these

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Answer: Option A

Explanation:

Number of carpets required to cover the entire floor = total floor area/ area of carpet = 10x8 /2x2 = 20
Total cost of carpet squares = 20 x 12x(2/3) = Tk. 160

সমন্বিত ৯ ব্যাংক | 07-01-2022 ||

A. 60
B. 72
C. 80
D. 90
E. None of these

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Answer: Option A

Explanation:

Let's denote the length of the two shorter sides of the rectangular plot as "x" feet each, and the length of the longer sides as "3x" feet each.

The area of a rectangle is given by the formula: Area = Length x Width.

Given that the area of the plot is 432 square feet, we can write the equation:

Area = x * 3x = 3x^2.

Now, we have the equation:

3x^2 = 432.

To find the value of "x," divide both sides of the equation by 3:

x^2 = 432 / 3 x^2 = 144.

Now, take the square root of both sides to solve for "x":

x = √144 x = 12.

So, the length of the shorter sides is 12 feet, and the length of the longer sides is 3x = 3 * 12 = 36 feet.

Now, let's calculate the total length of the fence:

Two shorter sides: 2 * x = 2 * 12 = 24 feet. One longer side: 36 feet.

Total length of the fence = 24 feet + 36 feet = 60 feet.

So, the total length of the fence is 60 feet.

বাংলাদেশ গ্যাস ফিল্ড | সহকারী-ব্যবস্থাপক | 03-12-2021 || 2021

A. $40
B. $500
C. $100
D. $480

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Answer: Option B

Explanation:

area of rectangular room = 8*5 = 40 square meter

So, the carpet cost = 40×$12.50 = $500 (Ans)

1072 . A rectangular tank 10 inch by 8 inch by 4 inch is filled with water. If all of the water is to be transferred to cube-shaped tanks, each one 3 inches on a side, how many of these smaller tanks are needed?

A. 9
B. 12
C. 16
D. 21

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Answer: Option B

Explanation:

Volume of the rectangular tank = 10×8×4 = 320 in3

Volume of a smaller tank = 33 = 27 in3

Number of smaller tanks needed = 320/27 ≈ 12

1073 . A red house is built from red bricks . A blue house is built from blue bricks. A white house is built from white bricks. Then what is a greenhouse made from ?

A. green bricks
B. wood
C. glass
D. steel

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Answer: Option C

Explanation:

Bangladesh Bank - Assistant Director - 2009

A. 5200
B. 5000
C. 6000
D. 5400

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Answer: Option B

Explanation:

1075 . A reduction of 21% in the price of wheat enables a person to buy 10.5 kg more for Tk.100. What is the reduced price per kg?

A. 2.30
B. 2.50
C. 2
D. 2.25

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Answer: Option C

Explanation:

1076 . A reservoir has two pipes, A and B. A can fill the reservoir 5 hours faster than B. If both together fill the reservoir in 6 hours, the reservoir will be filled by A alone in-

A. 8 hours
B. 10 hours
C. 11 hours
D. 12 hours

View Answer	Favorite Question

Answer: Option B

Explanation:

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

A. 30%
B. 20%
C. 40%
D. 50%

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Answer: Option D

Explanation:

1078 . A restaurant meal costs Tk. 35.50 and there was no tax. If the tip was more than 10 percent but less than 15 percent of the cost of meal, then the total amount paid must have been between --

A. Tk. 40 and Tk. 42
B. Tk. 39 and Tk. 41
C. Tk. 38 and Tk. 40
D. Tk. 37 and Tk. 39

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Answer: Option B

Explanation:

11 is the least and 14 is the highest tip percentage of 10

So, 35.50+(11% of 35.50)=39.4

and, 35.50+(14% of 35.50)=40.4

Both are between 39 and 41

(ans).

1079 . A restaurant meal costs Tk. 35.50 and there was no tax. If the tip was more than 10 percent but less than 15 percent of the cost of the meal, then the total amount paid must have been between ---

A. Tk. 40 & Tk. 42
B. Tk. 39 & Tk. 41
C. Tk. 33 & Tk. 40
D. Tk. 37 & Tk. 39
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

let, Tip = t

Min = 35.50*1.10 = 39.05

Max = 35.50*1.15 = 40.825

39.05 < t < 40.825

so,the total amount paid must have been between Tk.39 & Tk.41 (ans)

1080 . A retail buyer purchase 15 white dress shirts for Tk. 1000 and 5 striped dress shirts Tk. 400. At what average price the retailer should sell a dress shirt if he wants to make a proftit of Tk. 50 each shirt?

A. 110
B. 100
C. 125
D. 150
E. 120

View Answer	Favorite Question

Answer: Option E

Explanation:

Total cost = 1000 + 400 = Tk.1400

Total shirts = 15 + 5 = 20

Total profit = 20 × 50 = Tk. 1000

Total selling price = 1400 + 1000 = Tk. 2400

Price = 2400/20 = Tk.120

Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

1066 . A rectangular carpet, that is 9 feet by 12 feet, covers 60% of a rectangular floor. What is the area of the floor?

1067 . A rectangular field will be fenced on three sides leaving a side of 20 feet uncovered. If the area on the filed is 680 squares feet, how many feet of fencing will be required?

1068 . A rectangular fish tank 25m by 9m has water in it to a level of 2m . This water is carefully poured into a cylindrical container with a diameter of 10m . How high will the water reach in the cylindrical container?

1069 . A rectangular floor that measures 8 metres by 10 metres is to be covered with carpet squares that each measures 2 metres by 2 metres. If a carpet square costs Tk. 12, calculator the total cost cover 2/3 of the floor?

1070 . A rectangular plot of land has a fence along three of its four sides. The undenced side and the side opposite the unfenced side have a length that is three times thel length of the other two sides. If the area of the plot is 432 square feet, what is the total length id the fence in feet.

1071 . A rectangular room that is 8 meters by 5 meters is to be carpeted using carpet costing $12.50 per spare meter

1072 . A rectangular tank 10 inch by 8 inch by 4 inch is filled with water. If all of the water is to be transferred to cube-shaped tanks, each one 3 inches on a side, how many of these smaller tanks are needed?

1073 . A red house is built from red bricks . A blue house is built from blue bricks. A white house is built from white bricks. Then what is a greenhouse made from ?

1074 . A reduction of 12.5% in the price of dining table bought down its price to Tk.4375. The original price (in Taka) of the table was:

1075 . A reduction of 21% in the price of wheat enables a person to buy 10.5 kg more for Tk.100. What is the reduced price per kg?

1076 . A reservoir has two pipes, A and B. A can fill the reservoir 5 hours faster than B. If both together fill the reservoir in 6 hours, the reservoir will be filled by A alone in-

1077 . A restaurant makes 0% profit after selling a set menu at a discount of 20%. What is the percentage increase of marked price?

1078 . A restaurant meal costs Tk. 35.50 and there was no tax. If the tip was more than 10 percent but less than 15 percent of the cost of meal, then the total amount paid must have been between --

1079 . A restaurant meal costs Tk. 35.50 and there was no tax. If the tip was more than 10 percent but less than 15 percent of the cost of the meal, then the total amount paid must have been between ---

1080 . A retail buyer purchase 15 white dress shirts for Tk. 1000 and 5 striped dress shirts Tk. 400. At what average price the retailer should sell a dress shirt if he wants to make a proftit of Tk. 50 each shirt?

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