Question taken from RD sharma
Chapter no. 4
Chapter name:- Triangles
Exercise :- 4.2
This is very basic and important questions.
In this question we have a triangle ΔABC,
In which D and E are points on the sides AB and AC respectively such that DE || BC.
It is also given that AD = 4 cm, AE = 8 cm, DB = x – 4 cm and EC = 3x – 19,
Now we have to find x.
Understanding and learning CBSE maths
RD sharma, DHANPAT RAI publication