1.

यदि a:b= 2/9:1/3, b:c=2/7:5/14 तथा d:c=7/10:3/5 हो तो a:b:c:d =?

A. 12:15:17:19
B. 13:34:53:90
C. 19:139:45:67
D. 16:24:30:35
Answer» E.


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