railway RRB ALP (CBT 1 + CBT 2 + CBAT) Mock Test Series 2025 (New) Quantitative Aptitude Geometry Triangles, Congruence and Similarity
In ΔABC, D and E are points on side AB and AC respectively. DE is parallel to BC. If lengths of AD, DB and DE are 10 cm, 20 cm and 7 cm respectively. What is the length of BC?
1
12 cm
2
16 cm
3
15 cm
4
21 cm