61 . When heated an iron bar expands 0.2% . If the increased length is 1cm , what is the original length of the bar ?
- A. 500cm
- B. 5cm
- C. 0.97cm
- D. 1.97cm
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Bangladesh Bank - Assistant Director - 2010
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62 . If 20 percent of 80 percent of a number is 12.8, then what is the number ?
- A. 80
- B. 50
- C. 40
- D. 9
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