1 . If Mamun were twice as old as he is now, he would be 40 years older than Jamal. If Jamal is 10 years younger than Mamun, How old is Mamun?
- A. 20
- B. 30
- C. 40
- D. 50
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1 . If Mamun were twice as old as he is now, he would be 40 years older than Jamal. If Jamal is 10 years younger than Mamun, How old is Mamun?
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