3676 . What is the rate of discount if a car that had a regular price of Tk. 30,00,000 is sold for Tk. 27,90,000?

A. 7%
B. 8%
C. 9%
D. 10%

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Answer: Option A

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Bangladesh Bank - Assistant Director - 2001

A. 4%
B. 5%
C. 3%
D. 6%

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Answer: Option B

Explanation:

Original sum = Tk. 360
Total interest in 9 years = 540 - 360 = 180
Interest in last 5 years = 5 x 6 = 30%
= 30/100 x 360 = Tk. 108
= > Interest in first four years : 180 - 108 = Tk. 72 Interest per annum = 72/4 = 18
Rate of interest for first four years = 18/360 x 100 = 5%

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সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

3678 . what is the simplified value of $(a^{4} b^{3})$ ?

A. ${(a b)}^{9}$
B. $a^{8} b^{6}$
C. ${(a b)}^{24}$
D. $a^{6} b^{5}$

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Answer: Option B

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Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018

A. 5
B. -5
C. 1/5
D. -1/5

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Answer: Option C

Explanation:

y = - 5x + 9

y + 5x = 9....... (1)

সুতরাং, (১) নং রেখাটির লম্বরেখার সমীকরণ 5y - x = k

y = x/5 + k

লম্ব রেখাট ঢাল = 1/5 .

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Assistant Director (General) 06.07.18

A. 182
B. 62
C. 422
D. 362

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Answer: Option A

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3681 . What is the smallest number that should be added to 100 so that it can be completely divided by all the prime numbers between 10 to 15 ?

A. 43
B. 6
C. 9
D. 1/3

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Answer: Option A

Explanation:

আমরা জানি, 10 থেকে 15 এর মধ্যে অবস্থিত মৌলিক সংখ্যাগুলো হলো 11 এবং 13। এখন 11 এবং 13 এর ল. সা. গু. হলো 143 । সুতরাং (143       –       100)  =  43 । 
∴∴ 100 এর সাথে কমপক্ষে 43 যোগ করলে তা11 এবং13 দ্বারা বিভাজ্য হবে।

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3682 . What is the smallest number that should be added to 4456 so that the sum is completely divisible by 6?

A. 2
B. 3
C. 4
D. 5
E. None of these

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Answer: Option A

Explanation:

The diviisible smallest number = ( 4456 + 2)/6 = 743

so required smallest number is 2.

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3683 . What is the square root of 0.16?

A. 0.004
B. 0.04
C. 0.4
D. 4

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Answer: Option C

Explanation:

0.16=16100.

⇒√0.16=√16100.

⇒√16100=±410=±25←note plus or minus.

⇒√0.16=±25=±0.4.

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

A. 1/2
B. 8/10
C. 5/16
D. 9/10
E. None of these

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Answer: Option D

Explanation:

0.15 + 0.10 + 0.65 = 15/100 + 10/100 + 65/100 = 3/20 + 1/10 + 13/20 = (3 + 2 + 13)/20 = 18/20 = 9/10

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3685 . What is the sum of the following series? 1+2+3.........+100=?

A. 5500
B. 5050
C. 5055
D. 5850

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Answer: Option B

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3686 . What is the sum of the squares of the digits from 1 to 9

A. 260
B. 105
C. 285
D. 385

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Answer: Option C

Explanation:

12 + 22 + 32 + ........ + 92

n সংখ্যক স্বাভাবিক সংখ্যার বর্গের সমষ্টি = n(n + 1)(2n + 1) /6 = 9(9 + 1) ( 2×9 + 1)/6 = 9×10×19/6 = 285

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3687 . What is the sum of two consecutive even numbers the difference of whose squares is 84

A. 48
B. 58
C. 42
D. 46

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Answer: Option C

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Probashi Kallyan Bank-Officer (Cash)-25-09-2021

A. 0.2 inches
B. 0.4 inches
C. 2.3 inches
D. 0.3 inches

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Answer: Option A

Explanation:

Consider going across the width of the pipe:

Outer diameter = Thickness + Inner diameter + Thickness

so 2*Thickness = Outer diameter - Inner diameter = 2.5 - 2.1 = 0.4 inches

and therefore, Thickness = 0.2 inches.

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3689 . what is the total interest on Tk. 800 at 12.5 % per annum for 9 months in taka?

A. 75
B. 110
C. 88
D. 22
E. None of these

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Answer: Option A

Explanation:

Interest, I = P n r

Here, P = 800 TK, n = 9/12 year, r = 12.5/100 = 1/8

So, I = 800 × 9/12 × 1/8 = 75 TK

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Jamuna Bank Ltd - Probationary Officer - 2009

A. 75
B. 110
C. 88
D. 22

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Answer: Option A

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3676 . What is the rate of discount if a car that had a regular price of Tk. 30,00,000 is sold for Tk. 27,90,000?

3677 . What is the rate of simple interest for the first 4 years if the sum of TK. 360 becomes TK. 540 in 9 years and the rate of interest for the last 5 years is 6% ?

3679 . what is the slope of the line perpendicular to the line y = -5x +9 ?

3680 . What is the smallest number of apples that can be distributed equally among 4, 6, 9 or 15 students having a surplus of two apples each time?

3681 . What is the smallest number that should be added to 100 so that it can be completely divided by all the prime numbers between 10 to 15 ?

3682 . What is the smallest number that should be added to 4456 so that the sum is completely divisible by 6?

3683 . What is the square root of 0.16?

3684 . What is the sum of 0.15, 0.10 and 0.65?

3685 . What is the sum of the following series? 1+2+3.........+100=?

3686 . What is the sum of the squares of the digits from 1 to 9

3687 . What is the sum of two consecutive even numbers the difference of whose squares is 84

3688 . What is the thikness of a pipe that has an outer diameter of 2.5 inches and inner diameter of 2.1 inches?

3689 . what is the total interest on Tk. 800 at 12.5 % per annum for 9 months in taka?

3690 . What is the total interest on Tk.800 at 12.5% per annum for 9 months in taka?

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