D and E are points on side AB and AC of $\triangle ABC$. DE is parallel to BC. If AD:DB = 2:5 and area of $\triangle ADE $ is 8 sq cm, what is the ratio of area of $\triangle ADE$: area of quadrilateral BDEC?

D and E are points on side AB and AC of $\triangle ABC$. DE is parallel to BC. If AD:DB = 2:5 and area of $\triangle ADE $ is 8 sq cm, what is the ratio of area of $\triangle ADE$: area of quadrilateral BDEC?
1). (4:45)
2). (45:4)
3). (8:45)
4). (45:8)

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