1 . Two numbers are in the ratio 5 : 4 and their difference is 10. What is the smallest number?
- A. 30
- B. 40
- C. 50
- D. 60
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বাংলাদেশ সেতু কর্তৃপক্ষ (সহকারী সাব-ইঞ্জিনিয়ার) 18-12-2020
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