1.

यदि A:B =1:2, B:C =3:4 और C:D =5:6 है तो D:C:B:A ज्ञात कीजिए ?

A. 23:34:19
B. 19:34:56:30
C. 48:40:30:15
D. 12:25:56:89
Answer» D. 12:25:56:89


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