Compound interest on a certain sum for 2 years at 10% per annum is Tk. 420.What would be the simple interest at the same rate and for the same time?

Created: 8 months ago | Updated: 1 month ago

Tk. 100

Tk. 200

Tk. 300

Tk. 400

Job Solution Combined Bank (সমন্বিত ব্যাংক) Sonali Bank Ltd Officer (Cash) 27.04.2018 গণিত

407

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Let, the principal = x,

C = p( $1 + r)^{n}$

$\Rightarrow$ x+420=x(1+ $\frac{10}{100})^{2}$

$\Rightarrow$ x+420=1.21x

$\Rightarrow$ x=2000

Time, t = 2 years and Rate, r = 10%

We know, I = pnr=2000 $\times$ 2 $\times$ $\frac{10}{100}$ =400

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The difference between the radii of bigger circle and smaller circle is 14 cm and the difference between their areas is 1056 cm2. Radius of the smaller circle is:

Created: 8 months ago | Updated: 1 month ago

7cm

5cm

9cm

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Job Solution Combined Bank (সমন্বিত ব্যাংক) অফিসার (ক্যাশ) নিয়োগ পরীক্ষা- ১২-১০-২০১৮ গণিত

819

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A sum of Tk. 312 was decided among 100 boys and girls in such a way that each boy get Tk 3.6 and each girls Tk. 2.4 . The number of girls is-

Created: 7 months ago | Updated: 1 month ago

৩৫

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Shehnaz has to record temperature of a covid-19 patient in Celsius but hard thermometer reads Fahrenheit. The patient's temperature is 100.7° Fahrenheit. What is the temperature in Celsius?

Created: 7 months ago | Updated: 1 month ago

32°C

36.5°C

37.5° C

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Job Solution Combined Bank (সমন্বিত ব্যাংক) সমন্বিত ৪ ব্যাংক - সহকারী প্রোগ্রামার - 25.09.2020 গণিত

942

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A number is as much greater than 36 as is less than 86.Find the number

Created: 8 months ago | Updated: 1 month ago

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Job Solution Combined Bank (সমন্বিত ব্যাংক) Two Combined Bank Recruitment Test Post: Officer - 28/09/2018 গণিত

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The diameters of two circles are the side of a square and the diagonal of the square. The ratio of the areas of the smaller circle and the larger circle is :

Created: 7 months ago | Updated: 1 month ago

1 : 2

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\sqrt{3}

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Job Solution Combined Bank (সমন্বিত ব্যাংক) Sonali & Janata Bank | Officer (IT)| 04.01.2019 গণিত

1057

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