There are two numbers , 1 st number is 12 more than the 2nd number . The average of the two numbers is 19. If 2 is added in both numbers , find the ratio of the numbers .
A. 5 : 9
B. 11 : 9
C. 4 : 9
D. 9: 5
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সঠিক উত্তরঃ
D.
9: 5
Explanation:
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