2851 . Saif , Noman and Morshed divided a sum of money among themselves in the ratio 2: 3: 7 Find the share of Saif if the total share of saif and Noman together is Tk. 1,500 less than that of Morshed.

A. Tk. 2,000
B. Tk. 1,200
C. Tk. 1,500
D. Tk. 2,500
E. None of these

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Answer: Option C

Explanation:

Let their shares be 2x, 3x and 7x respectively.

ATQ, 7x - (2x + 3x) = 1500

or, 7x - 5x = 1500

or, 2x = 1500

So, share of Saif is 1500 TK.

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Jamuna Bank Ltd - Probationary Officer - 2009

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2852 . Saif charges Tk.5.00 for every hour he works. Last week he worksd for 8 hours. He spent Tk. 12.00 of the money he earned. Which expression could he used to find how much he had left?

A. Tk.5.00 × 8 + Tk.12.00
B. Tk.5.00 × 8 - Tk.12.00
C. Tk.5.00/8 - Tk.12.00
D. (Tk.5.00 × 8)/ Tk.12.00

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Answer: Option B

Explanation:

remaining money = total money that he earned - money that he spent

= Tk 5.00*8 - Tk 12.00

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2853 . Salam earns Tk. 8.50 per hour on days other than Friday and twice the rate on Friday. Last week he worked a total of 50 hours including 8 hours on Friday. What is his earning for the week?

A. Tk. 340
B. Tk. 398
C. Tk. 408
D. Tk. 493

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Answer: Option D

Explanation:

During the week, Salam worked a total of 50 - 8 = 42 hours at a rate of Tk. 8.50 per hour.
On Friday, he worked 8 hours at a rate of Tk. 8.50 × 2 = Tk. 17.00 per hour.

Total earnings for the week = 42 × 8.50 + 8 × 17 = TK. 493.

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সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (সাধারণ) (20-01-2023)

A. 100
B. 200
C. 300
D. 400

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Answer: Option B

Explanation:

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2855 . Salim gets grades of 79, 83, 86 and 89 on four math tests. What grade must he get on his fifth test to average 85?

A. 86
B. 36
C. 87
D. 85
E. 88

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Answer: Option E

Explanation:

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Bangladesh Bank - Officer(Cash) - 2011

A. 12 cents
B. $7 cents
C. 60 cents
D. 40 cents

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Answer: Option D

Explanation:

Let's assume the price at which Salim's shares were sold is 'P' in Tk (Taka).

Salim's brother charges a flat rate of commission of Tk. 20 on all transactions of less than Tk. 1000. Since Salim's bank account was credited with Tk. 340 after selling the shares, we can set up the following equation:

Sale Price of Shares - Commission = Amount Credited

P * 900 - 20 = 340

Simplifying the equation:

900P - 20 = 340 900P = 340 + 20 900P = 360

Dividing both sides by 900: P = 360 / 900 P = Tk. 0.40

Therefore, the shares were sold at Tk. 0.40 each.

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বাংলাদেশ অর্থনৈতিক অঞ্চল কর্তৃপক্ষ (BEZA) | সহকারী ব্যবস্থাপক | ৩০.১১.২০১৮

A. 100%
B. 94%
C. 84%
D. 96%

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Answer: Option A

Explanation:

the sum of the first 4 test scores is 4*80 = 320

the sum of ALL 5 scores to be 5*84 = 420

she need score in her fifth test = 420 - 320 = 100

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2858 . Salma Average in 4 test in 80% what marks dose she needs to score in her fifth test to marks her avetage 84%

A. 100%
B. 94%
C. 84%
D. 96%

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Answer: Option A

Explanation:

the sum of the first 4 test scores is 4*80 = 320

the sum of ALL 5 scores to be 5*84 = 420

she need score in her fifth test = 420 - 320 = 100

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2859 . Sam can mow a lawn in 20 min, while mark takes 10 min longer to longer to mow the same lawn. How long will they take to mow the lawn if they work together?

A. 12 min
B. 14 min
C. 15 min
D. more than 15 min

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Answer: Option A

Explanation:

sam এর সময় লাগে 20 মিনিট

Mark এর সময় লাগে = ( 20 + 10) = 30 মিনিট

Sam ও Markএকত্রে কাজ করলে সময় লাগে ( 20 × 30) /( 20 + 30) মিনিট = 600/50 = 12 মিনিট।

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2860 . Sam ranked ninth from the top and thirty-eight from the bottom in a class. How many students are there in the class?

A. 45
B. 47
C. 46
D. 48

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Answer: Option C

Explanation:

Hints:

9 + 38 - 1 = 46

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উত্তরা ব্যাংক | অ্যাসিস্ট্যান্ট অফিসার | 23-07-2022

A. 3.5%
B. 4%
C. 4.5%
D. 5.6%
E. None of these

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Answer: Option D

Explanation:

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2862 . Saplings are to be planted 30 feet apart along one side of a straight lane 455 feet long. If the first sapling is to be planted at one end of the lane, how many saplings are needed?

A. 13
B. 14
C. 15
D. 16

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Answer: Option D

Explanation:

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2863 . Sarah needs to make a cake and some coolies. The cake requires 3/8 cup of sugar and the coolies require 3/5 cup of sugar. Sarah has 15/16 cups of sugar. Does she have enough sugar, or how much more does she need?

A. has enough sugar
B. needs 1/8 of a cup of sugar
C. needs 3/80 of a cup of sugar
D. needs 6/19 of a cup of sugar
E. None of these

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Answer: Option C

Explanation:

Sugar required = 3/8 + 3/5 = (15 + 24) / 40 = 39/40 cup

Shortage of sugar = 39/40 - 15/16 = (78 - 75)/80 = 3/80 cup

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2864 . Saurabh has purchased a square sheet of plywood 196 square feet area. To cover a wall he must cut off 3 feet from a side. What is the area in square feet of the wall?

A. 154
B. 144
C. 169
D. 168

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Answer: Option A

Explanation:

Side of the plywood = √169 = 13 feet

Cutting of 2 feet from a side will make it a rectangular sheet with a length of 13 feet and a width of 11 feet. Area of the wall is equal to the area of this sheet.

So, the area of the wall = 13 x 11 = 143 sq ft

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2865 . Seats for Mathematics, Physics and Biology in a university are in the ratio 5: 7: 8, There is a proposal to increase these seats by 40% , 50% and 75% respectively. what will be ratio of increased seats?

A. 2: 3: 4
B. 6: 7: 8
C. 6: 8: 9
D. Remain the same
E. None of these

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Answer: Option A

Explanation:

Let, the number of seats for Math, physics, and biology, be 5x, 7x and 8x respectively

Number of increased seats are ( 140% of 5x).

(150% of 7x) ( 175% of 8x)

= (140/100×5x) , ( 150/100×7x), ( 175/100×8x)

7x, 21x/2, 14x

The required ratio = 7x : 21x/2 : 14x

= 14x : 21x : 28x

= 2 : 3 : 4

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2851 . Saif , Noman and Morshed divided a sum of money among themselves in the ratio 2: 3: 7 Find the share of Saif if the total share of saif and Noman together is Tk. 1,500 less than that of Morshed.

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2852 . Saif charges Tk.5.00 for every hour he works. Last week he worksd for 8 hours. He spent Tk. 12.00 of the money he earned. Which expression could he used to find how much he had left?

2853 . Salam earns Tk. 8.50 per hour on days other than Friday and twice the rate on Friday. Last week he worked a total of 50 hours including 8 hours on Friday. What is his earning for the week?

2854 . Salaries of A, B and C are in the ratio 1 : 2 : 3. Salary of B and C togather is Tk.6000. By what percent is salary of C more than that of A?

2855 . Salim gets grades of 79, 83, 86 and 89 on four math tests. What grade must he get on his fifth test to average 85?

2856 . Salim sells 900 shares via his brother who changes a frate rete of commission of TK. 20 cm all transmission of less thes TK. 1600. His bask account is credited with Tk. 340 from the share sale. What price were his shares sold at?

2857 . Salma's average in four tests is 80%. What mark does she need score in her fifth test to make her average 84%?

2858 . Salma Average in 4 test in 80% what marks dose she needs to score in her fifth test to marks her avetage 84%

2859 . Sam can mow a lawn in 20 min, while mark takes 10 min longer to longer to mow the same lawn. How long will they take to mow the lawn if they work together?

2860 . Sam ranked ninth from the top and thirty-eight from the bottom in a class. How many students are there in the class?

2861 . Samad purchased 20 dozens of toys at the rate of TK. 375 per dozen. He sold each one of them at the rate of TK.33. What was his percentage profit?

2862 . Saplings are to be planted 30 feet apart along one side of a straight lane 455 feet long. If the first sapling is to be planted at one end of the lane, how many saplings are needed?

2863 . Sarah needs to make a cake and some coolies. The cake requires 3/8 cup of sugar and the coolies require 3/5 cup of sugar. Sarah has 15/16 cups of sugar. Does she have enough sugar, or how much more does she need?

2864 . Saurabh has purchased a square sheet of plywood 196 square feet area. To cover a wall he must cut off 3 feet from a side. What is the area in square feet of the wall?

2865 . Seats for Mathematics, Physics and Biology in a university are in the ratio 5: 7: 8, There is a proposal to increase these seats by 40% , 50% and 75% respectively. what will be ratio of increased seats?

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