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In triangle ABC ,D and E are the points ...

In `triangle ABC` ,D and E are the points on sides AB and AC, respectively, such that DE || BC. If AD /BD = 3/4 ,Then ratio of the area of trapezium DECB to the area of `triangle ABC` is:
त्रिभुज ABC में, D तथा E भुजा AB और AC पर स्थित ऐसे बिंदु हैं कि DE || BC और AD/BD = 3/4 है | समलम्ब DECB के क्षेत्रफल और त्रिभुज ABC के क्षेत्रफल में अनुपात ज्ञात करें ।

A

`49:33`

B

`49:40`

C

`40:49`

D

`33:49`

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