1981 . If the radius of a circle is increased by 100%, by what % is the area of the circle increased?
- A. 100%
- B. 200%
- C. 300%
- D. 400%
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সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)
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1982 . If the radius of a circle is increased by 20% then the area is increased by :
- A. 44%
- B. 400%
- C. 40%
- D. 120%
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যুব ও ক্রীড়া মন্ত্রণালয়ের যুব উন্নয়ন অধিদপ্তর | ক্যাশিয়ার | ০৪.০৫.২০১৮
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1983 . If the radius of a circle is increased by 6%, then the area of the circle is increased by ---
- A. .36%
- B. 3.6%
- C. 6%
- D. 12.36%
- E. 36%
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1984 . If the radius of a circle is reduced by 40%, its circumference is reduced by-
- A. 60%
- B. 40%
- C. 35%
- D. 30%
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1985 . If the radius of a circle is tripled, the circumference is
- A. multiplied by 3
- B. multiplied by 6
- C. multiplied by 9
- D. multiplied by 12
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সহকারী পরিচালক(AD) -12.11.2021
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1986 . If the rate if interest is 10 % per annum and is comunded half yearly , the principal of Tk.l 4000 in years will amount to-
- A. Tk 4630.00
- B. Tk 4630.50
- C. Tk 4631.50
- D. Tk. 4632.00
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সমন্বিত ৭ ব্যাংক ও ১টি আর্থিক | সিনিয়র_অফিসার | 27-11-2021
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সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||
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1988 . If the ratio of simple interest and principal is 8 : 25 and rate of interest is equal to the time invested then find the time of investment ?
- A. 12 years
- B. 8 years
- C. 10 years
- D. 16 years
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জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯
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1989 . If the ratio of speed of doing work of the persons is 1 : 3 : 5 , what is the ratio of this taken by these people to do the same amount of work ?
- A. 15 : 5 : 3
- B. 15 : 5 : 7
- C. 3 : 15 : 5
- D. 15 : 3 : 5
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জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯
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বাখরাবাদ গ্যাস ফিল্ড লি. || সহকারী ব্যবস্থাপক (সাধারণ) (16-10-2021)
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1991 . If the ratio of the radii of the two circles is 3 : 2, than the ratio of the areas of the two circles is:
- A. 4 : 9
- B. 9 : 4
- C. 2 : 3
- D. 3 : 4
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1995 . If the side of a square increases by 40%, then the area of the square increases by-
- A. 16%
- B. 96%
- C. 116%
- D. 140%
- E. None of these
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বাংলাদেশ বনশিল্প উন্নয়ন কর্পোরেশন সহকারী ব্যবস্থাপক-০২.০৮.২০১৩
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