1126 . A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increase by 10%. What is the radio of his new profit to his usual profit?

A. 10:25
B. 11:15
C. 22:25
D. 20:25
E. None of these

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Answer: Option C

Explanation:

New sale = 110% of usual sale

New profit = 20% of 110% = 22%

New profit : Usual profit = 22% : 25% = 22 : 25

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1127 . A salseman travels a distance of 70 miles in 2.5 hours. How much faster in miles per hour; must he travels to make the same trip in 0.75 hours less time?

A. 12
B. 24
C. 28
D. 37

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Answer: Option A

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1128 . A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed 5 teachers and 10 students is :

A. 220
B. 5,100
C. 2,100
D. 3,200
E. None of these

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Answer: Option C

Explanation:

5C₂ × 10 C₄ = 2100

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1129 . A school had 100 students aged 20years on an average. At the of the year 20 students aged 22 years on an average left and 25 students of 18 years on an average joined the school. What is the average age of the present students of the school?

A. 20.1
B. 18
C. 20
D. 22

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Answer: Option A

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1130 . A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 3 classes were half full. 5 classes were 3/4 full and 2 classes were 1/6 empty. A total of 74 students were absent. What is the total number of students in this school?

A. 200
B. 220
C. 240
D. 400
E. None of these

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Answer: Option C

Explanation:

Let x = number of students in each class.

Then total number of students in school. is = 10x

If 3 classes are half full then we have 3x/2 students absent.

If 5 classes are 3/4 full that means that (1/4)*5x students are absent.

If 2 classes are 1/6 empty that means that (1/6)*2x students are absent.

Now we are told that

(3x/2) + (1/4)*5x + (1/6)*2x = 74

or,(3x/2) + (5x/4) + (x/3) = 74

or,18x + 15x + 4x = 888

or,7x = 280

x = 24

number of students in each class is 24

number of student in this school = 10x

= 10*24 = 240

ans: 240

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দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

A. 200
B. 220
C. 250
D. 400
E. None of these

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Answer: Option A

Explanation:

Circumference of the circular path = 2/\50 = 100 /\ m

This means 100 /\ m is the distance covered in 60 minutes

Therefore distance covered in 15 minutes = 1/4 x 100 /\ m = 25/\ m

Now distance covered in one revolution of the wheel = 2 /\(1/2) m = /\ m

Therefore number of revolutions in 15 minutes = 25/\ //\ = 25

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1132 . A school has only 3 classes having 20, 30 and 40 students respectively. The percentages of students passed are 30%. 50% and 60% respectively. Find the percentage of passed students of the entire school.

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

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Answer: Option B

Explanation:

To find the percentage of passed students in the entire school, you can calculate the weighted average of the percentages based on the number of students in each class.

Here's how you can do it:

Calculate the total number of students in the school:

Total students = 20 + 30 + 40 = 90

Calculate the total number of students who passed in each class:

In the first class, 30% of 20 students passed: 0.30 * 20 = 6 students passed.
In the second class, 50% of 30 students passed: 0.50 * 30 = 15 students passed.
In the third class, 60% of 40 students passed: 0.60 * 40 = 24 students passed.

Calculate the total number of students who passed in the entire school:

Total passed students = 6 + 15 + 24 = 45

Calculate the percentage of passed students in the entire school:

Percentage passed = (Total passed students / Total students) * 100 Percentage passed = (45 / 90) * 100 Percentage passed = 0.5 * 100 Percentage passed = 50%

So, the percentage of passed students in the entire school is 50%.

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সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

A. 35
B. 40
C. 45
D. 50

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Answer: Option D

Explanation:

To find the percentage of passed students in the entire school, you can calculate the weighted average of the percentages based on the number of students in each class.

Here's how you can do it:

Calculate the total number of students in the school:
Total students = 20 + 30 + 40 = 90

Calculate the total number of students who passed in each class:
In the first class, 30% of 20 students passed: 0.30 * 20 = 6 students passed.
In the second class, 50% of 30 students passed: 0.50 * 30 = 15 students passed.
In the third class, 60% of 40 students passed: 0.60 * 40 = 24 students passed.
Calculate the total number of students who passed in the entire school:
Total passed students = 6 + 15 + 24 = 45

Calculate the percentage of passed students in the entire school:
Percentage passed = (Total passed students / Total students) * 100 Percentage passed = (45 / 90) * 100 Percentage passed = 0.5 * 100 Percentage passed = 50%

So, the percentage of passed students in the entire school is 50%.

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সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)

A. Tk 25
B. Tk 30
C. Tk 40
D. Tk 50
E. Tk 60

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Answer: Option B

Explanation:

Let Total people = 100

60% people of total people = 60

They donate amount = 60×60 = 3600

Remaining people = 100 - 60 = 40

And remaining amount = ( 3600×100) 75 - 3600 = 4800 - 3600 = 1200

They donate per person = 1200/40 = 30Tk.

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1135 . A scored 30% marks and failed by 15 marks. B scored 40% marks and obtained 35 marks more than those required to pass. The pass percentage is-

A. 33%
B. 38%
C. 43%
D. 46%

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Answer: Option A

Explanation:

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

A. Tk. 1000
B. Tk. 1200
C. Tk. 1500
D. Tk. 1600
E. None

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Answer: Option C

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A. Tk 450
B. Tk 480
C. Tk 500
D. None of these

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Answer: Option C

Explanation:

Hints:

25% লাভে

ক্রয়মূল্য ১০০ টাকা হলে বিক্রয়মূল্য ১২৫ টাকা

ক্রয়মূল্য ৩৮০ টাকা হলে বিক্রয়মূল্য (১২৫× ৩৮০)/১০০ টাকা = ৪৭৫ টাকা

আবার, ৫% ডিসকাউন্ট এ,

বিক্রয়মূল্য ৯৫ টাকা হলে তালিকা মূল্য ১০০ টাকা

বিক্রমূল্য ৪৭৫ টাকা হলে তালিকা মূল্য (৪৭৫× ১০০)/৯৫ = ৫০০ টাকা

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1138 . A seller made 10% profit after selling a product at 20% commision on list price. What is the list price of that product?

A. 137.5 Tk
B. 237.5 Tk
C. 347.5 Tk
D. 97 Tk

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Answer: Option A

Explanation:

list price = 100* (100+10)/(100-20)

= 100*(110/80)

= 275/2

= 137.5

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1139 . A seller marks his goods 30% above their cost price but allows 15% discount for cash payment . His percentage of profit when sold in cash is -

A. 15%
B. 9%
C. 10.5%
D. 8.5%

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Answer: Option C

Explanation:

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জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

A. 472
B. 476
C. 528
D. 532

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Answer: Option C

Explanation:

Sells price of A = Cost price of B

Sells price of B = cost price of c

For, A

when Cost price 100 then sells price 120 tk

when cost price 1 then sells price 120/100 tk

when cost price 400 then sells price = (120×400)/100 = 480Tk.

For, B

when cost price 100 then sells price 110 Tk.

when cost price 480 then sells price = ( 110×480)/100 = 528Tk.

So, C will pay B Tk. 528

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পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

1126 . A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increase by 10%. What is the radio of his new profit to his usual profit?

1127 . A salseman travels a distance of 70 miles in 2.5 hours. How much faster in miles per hour; must he travels to make the same trip in 0.75 hours less time?

1128 . A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed 5 teachers and 10 students is :

1129 . A school had 100 students aged 20years on an average. At the of the year 20 students aged 22 years on an average left and 25 students of 18 years on an average joined the school. What is the average age of the present students of the school?

1132 . A school has only 3 classes having 20, 30 and 40 students respectively. The percentages of students passed are 30%. 50% and 60% respectively. Find the percentage of passed students of the entire school.

1133 . A school has only the classes having 20, 30 and 40 students respectively. The percentages of students passed are 30%, 50% and 60% respectively. The percentage of passed students in the entire school is-

1135 . A scored 30% marks and failed by 15 marks. B scored 40% marks and obtained 35 marks more than those required to pass. The pass percentage is-

1136 . A seasoned workers efficiency is twice as much as an apprentice's. If they work together for 10 days on a project and earn Tk.45000 together, what is the daily wage of the apprentice?

1137 . A seller gave 5% discount on the tag price of a book and made a profit of 25% on cost. If the cost of the book was Tk. 380, what was the tag price?

1138 . A seller made 10% profit after selling a product at 20% commision on list price. What is the list price of that product?

1139 . A seller marks his goods 30% above their cost price but allows 15% discount for cash payment . His percentage of profit when sold in cash is -

1140 . A sells an article which cost him Tk. 400 to B at a profit of 20%. B then sells it to C,making a profit of 10% on the price he paid to A. How much does C pay B?

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