Question

Solve 7th one the answer must be 2

Answer 1

HOLA

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DE || BC

$\frac{ad}{db} = \: \frac{ae}{ec} \\ \\ \frac{1.5}{3} = \frac{1}{x} \\ \\ 1 \: (3) \: = \: 3 \: \div \: 1.5 \: = \: 2$
So , EC = 2cm

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HOPE U UNDERSTAND ❤❤❤

Answer 2

ad/db=ae/ec
1.5/3=1/x
cross multiply
1.5×X=3×1
1.5×X=3
X=3/1.5
X=2
thus the ans