646 . 50 girls and 100 boys were invited to a party. If 30% of the girls and 75% of the boys attend the party, what percentage of guests attended?

A. 55
B. 60
C. 65
D. 75

View Answer	Favorite Question

Answer: Option B

Explanation:

647 . 50 men took a dip in a water tank 40m long and 20m broad on a religious day. If the average displacement of water by a man is 4 m3 , then the rise in the water level in the tank will be --

A. 25 cm
B. 30 cm
C. 35 cm
D. 50 cm
E. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

Total volume of water displacement = 4×50 = 200m³

Rise of water level = 200/(40×20) m = . 25m = 25 cm

648 . 54 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780. The bigger part is :

A. 24
B. 34
C. 30
D. 32

View Answer	Favorite Question

Answer: Option B

Explanation:

x + y = 54

Or, x = (54 - y)

2n condition :

10x + 22y = 780

5x + 11y = 390

5 ( 54 - y) + 11y = 390

270 - 5y + 11y = 390

6y = 120

y = 20

x = ( 54 - 20) = 34

649 . 5×4−6÷3+1=?

A. 5
B. 4
C. -1
D. None of these

View Answer	Favorite Question

Answer: Option D

Explanation:

650 . 6,7,9,13,, _. what are the two missing numbers in the series?

A. 21,37
B. 17,21
C. 21,39
D. 17,19

View Answer	Favorite Question

Answer: Option A

Explanation:

7=6+(1×1)

9=7+(1×2)

13=9+(1×4)

So, next=13+(1×8)=21

Next=21+(1×16)=37

(ans)

Sonali &amp- Janata Bank Ltd. Senior Officer (IT/ICT) 08.06.2018

A. 40%
B. 90%
C. 60%
D. 85%
E. None of these

View Answer	Favorite Question

Answer: Option E

Explanation:

60% of the students are male.

60% of the males speak French.

40% of the students speak French.

We want to find the percentage of females in the college who do not speak French.

First, let's find the percentage of females in the college. Since 60% of the students are male, the remaining percentage of students must be female:

Percentage of females = 100% - 60% = 40%

Now, let's calculate how many of these females speak French. We know that 40% of the students speak French, and we just found that 40% of the students are female. So, the percentage of females who speak French is:

Percentage of females who speak French = 40% * 40% = 16%

Now, to find the percentage of females who do not speak French, subtract the percentage who do from 100%:

Percentage of females who do not speak French = 100% - 16% = 84%

So, the percentage of females in the college who do not speak French is 84%. None of the answer choices provided matches this percentage, so the correct answer is “None of these.”

652 . 617+6.017+0.617+6..0017 = ?

A. 6.2963
B. 62.965
C. 629.6357
D. None of these

View Answer	Favorite Question

Answer: Option C

Explanation:

Hints : 617 + 6.017 + .617 + 6.0017 = 629.6357

( The first digit is 617, the sum would definitely be over 617)

653 . 66 cubic centimeters of silver is drawn into a wire 1 mm in diameter. The length of the wire in meters will be-

A. 84 meters
B. 90 meters
C. 168 meters
D. 336 meters

View Answer	Favorite Question

Answer: Option A

Explanation:

Volume (V) = πr²h

Where:

V is the volume of the wire (given as 66 cubic centimeters).
π (pi) is approximately 3.14159.
r is the radius of the wire.
h is the length of the wire we want to find.

First, let's find the radius. The diameter of the wire is given as 1 mm, which means the radius (r) is half of that:

r = 1 mm / 2 = 0.5 mm = 0.05 cm (since 1 cm = 10 mm)

Now, plug in the values into the formula:

66 = 3.14159 * (0.05 cm)² * h

Now, solve for h (the length of the wire):

h = 66 / [3.14159 * (0.05 cm)²] h ≈ 84 meters

So, the length of the wire is approximately 84 meters.

সমন্বিত পাঁচ ব্যাংক || অফিসার ক্যাশ - 06.11.2021

A. 37
B. 333
C. 111
D. 84

View Answer	Favorite Question

Answer: Option A

Explanation:

655 . 7 is 5% of what number ?

A. 128
B. 156
C. 140
D. 135

View Answer	Favorite Question

Answer: Option C

Explanation:

7 is 5% = 7 × 5/100

বা, 7 × 1/20

বা, 7/0.05 = 140

আশা করি বুঝতে পারছেন

ধন্যবাদ

Bangladesh Bank - Officer - 2001

A. 20
B. 30
C. 40
D. 60

View Answer	Favorite Question

Answer: Option A

Explanation:

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

A. 250
B. 320
C. 200
D. 240

View Answer	Favorite Question

Answer: Option A

Explanation:

658 . 729ml of a mixture contains milk and water in ratio 7 : 2 . How much of the water is to be added to get a new mixture containing half milk and half water ?

A. 405ml
B. 81ml
C. 72ml
D. 91ml

View Answer	Favorite Question

Answer: Option A

Explanation:

729 * 7/9 = 81 * 7 = 567 = Milk

729 * 2/9 = 81 *2 = 162 = Water

Water to be added : 567 - 162 = 405.

Bangladesh Bank - Assistant Director - 2010

A. 0.04
B. 0.50
C. 0.06
D. 0.060

View Answer	Favorite Question

Answer: Option C

Explanation:

0.08% × 75% = 0.08 × 75/100 = 0.06

Bangladesh Bank - Assistant Director - 2010

A. 4242
B. 4155
C. 1123
D. 11023

View Answer	Favorite Question

Answer: Option B

Explanation:

Let 7589−x=3434
Then, x=7589−3434=4155

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

646 . 50 girls and 100 boys were invited to a party. If 30% of the girls and 75% of the boys attend the party, what percentage of guests attended?

647 . 50 men took a dip in a water tank 40m long and 20m broad on a religious day. If the average displacement of water by a man is 4 m3 , then the rise in the water level in the tank will be --

648 . 54 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780. The bigger part is :

649 . 5×4−6÷3+1=?

650 . 6,7,9,13,, _. what are the two missing numbers in the series?

651 . 60% of the students of a college are male. 60% of the males in the college speak French and 40% of the students of the college speak French. What is the percentage of the females in the college who do not speak French?

652 . 617+6.017+0.617+6..0017 = ?

653 . 66 cubic centimeters of silver is drawn into a wire 1 mm in diameter. The length of the wire in meters will be-

654 . 666 ÷ 6 ÷ 3 = ?

655 . 7 is 5% of what number ?

656 . 7 is added to a certain number, the sum is multiplied by 5; the product is divided by 9 and 3 is subtracted from the quotient. The remainder deft is 12. The number is:

657 . 72% of the students of a certain class took Biology and 44% took mathematics. If each students took Biology or Mathematics or both. If 40 students took both Biology and Mathematics then the total number of students in the class was---

658 . 729ml of a mixture contains milk and water in ratio 7 : 2 . How much of the water is to be added to get a new mixture containing half milk and half water ?

659 . 75% of 0.08 = ?

660 . 7589-? = 3434

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক

646 . 50 girls and 100 boys were invited to a party. If 30% of the girls and 75% of the boys attend the party, what percentage of guests attended?

647 . 50 men took a dip in a water tank 40m long and 20m broad on a religious day. If the average displacement of water by a man is 4 m3 , then the rise in the water level in the tank will be --

648 . 54 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780. The bigger part is :

649 . 5×4−6÷3+1=?

650 . 6,7,9,13,__, ___. what are the two missing numbers in the series?

651 . 60% of the students of a college are male. 60% of the males in the college speak French and 40% of the students of the college speak French. What is the percentage of the females in the college who do not speak French?

652 . 617+6.017+0.617+6..0017 = ?

653 . 66 cubic centimeters of silver is drawn into a wire 1 mm in diameter. The length of the wire in meters will be-

654 . 666 ÷ 6 ÷ 3 = ?

655 . 7 is 5% of what number ?

656 . 7 is added to a certain number, the sum is multiplied by 5; the product is divided by 9 and 3 is subtracted from the quotient. The remainder deft is 12. The number is:

657 . 72% of the students of a certain class took Biology and 44% took mathematics. If each students took Biology or Mathematics or both. If 40 students took both Biology and Mathematics then the total number of students in the class was---

658 . 729ml of a mixture contains milk and water in ratio 7 : 2 . How much of the water is to be added to get a new mixture containing half milk and half water ?

659 . 75% of 0.08 = ?

660 . 7589-? = 3434

650 . 6,7,9,13,, _. what are the two missing numbers in the series?