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

View Answer	Favorite Question

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

দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

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

View Answer	Favorite Question

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

1098 . 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

View Answer	Favorite Question

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%.

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

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

View Answer	Favorite Question

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%.

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

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

View Answer	Favorite Question

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.

1101 . 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%

View Answer	Favorite Question

Answer: Option A

Explanation:

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

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

View Answer	Favorite Question

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

1103 . 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

View Answer	Favorite Question

Answer: Option A

Explanation:

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

= 100*(110/80)

= 275/2

= 137.5

1104 . 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%

View Answer	Favorite Question

Answer: Option C

Explanation:

জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

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

View Answer	Favorite Question

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

পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

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

View Answer	Favorite Question

Answer: Option C

Explanation:

At 20% profit A sold the article to B at (400+ 400*20/100)= 480 tk.

At 10% profit B then sold it to C at (480+ 480*10/100)=528 tk

so, C pays tk 528 to B.

পূবালী ব্যাংক লিমিটেড || সিনিয়র অফিসার (30-09-2023) || 2023

A. 2%
B. 2.5%
C. 20%
D. 25%

View Answer	Favorite Question

Answer: Option C

Explanation:

12.5 - 10/12.50

= 25/125 × 100%

= 20% (ans)

1108 . A shirt marked Tk.12.50 is sold at Tk.10.00. The rate of discount on the marked price is--

A. 2%
B. 2.5%
C. 20%
D. 25%

View Answer	Favorite Question

Answer: Option C

Explanation:

12.5 - 10/12.50

= 25/125 × 100%

= 20% (ans)

1109 . A shirt was marked down 20% the first week and another 20% the next week. What percent of the regular price was the final cost of the shirt after two markdowns?

A. 30%
B. 36%
C. 40%
D. 64%
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

±a±b+(ab)/100

=-20-20+(20×20)/100

=|-36%|

=36%

(ans)

1110 . A Shopkeeper buys 100 mangoes at Tk. 12 each. He sell 60 mangoes at Tk. 17.40 each and x mangoes at Tk. 11.31 each. The Shopkeeper makes a profit of at least 10%. Find the least possible value of x.

A. 24
B. 25
C. 27
D. 28

View Answer	Favorite Question

Answer: Option B

Explanation:

Let's calculate the cost price and selling price to determine the least possible value of x for the shopkeeper to make a profit of at least 10%.

Cost Price (CP) of 100 mangoes = Tk. 12 each Total Cost Price of 100 mangoes = 100 * Tk. 12 = Tk. 1200

Selling Price (SP) of 60 mangoes = Tk. 17.40 each Total Selling Price of 60 mangoes = 60 * Tk. 17.40 = Tk. 1044

Now, we need to find the SP of the remaining (100 - 60 = 40) mangoes to cover the cost price and achieve a profit of at least 10%.

Let x be the number of mangoes sold at Tk. 11.31 each.

Total SP of x mangoes = x * Tk. 11.31

To make a profit of at least 10%, the SP must be at least 110% of the CP.

So, 110% of CP = 1.1 * Tk. 1200 = Tk. 1320

Now, we can set up an equation for the remaining mangoes:

Total SP of x mangoes + Tk. 1044 (SP of the first 60 mangoes) = Tk. 1320

x * Tk. 11.31 + Tk. 1044 = Tk. 1320

Now, subtract Tk. 1044 from both sides:

x * Tk. 11.31 = Tk. 1320 - Tk. 1044

x * Tk. 11.31 = Tk. 276

Now, divide both sides by Tk. 11.31 to find the value of x:

x = Tk. 276 / Tk. 11.31

x ≈ 24.37

Since x must be a whole number (representing the number of mangoes), we can round up to the nearest whole number to ensure a profit of at least 10%.

Rounding up, x = 25

So, the least possible value of x is 25 to achieve a profit of at least 10%.

1098 . 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.

1099 . 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-

1101 . 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-

1102 . 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?

1103 . A seller made 10% profit after selling a product at 20% commision on list price. What is the list price of that product?

1104 . 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 -

1105 . 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?

1106 . A sells an article which costs 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 to B?

1107 . A shirt marked TK. 12.50 is sold at TK. 10.00. The rate of discount on the marked price is -

1108 . A shirt marked Tk.12.50 is sold at Tk.10.00. The rate of discount on the marked price is--

1109 . A shirt was marked down 20% the first week and another 20% the next week. What percent of the regular price was the final cost of the shirt after two markdowns?

1110 . A Shopkeeper buys 100 mangoes at Tk. 12 each. He sell 60 mangoes at Tk. 17.40 each and x mangoes at Tk. 11.31 each. The Shopkeeper makes a profit of at least 10%. Find the least possible value of x.

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