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1. |
A man 2metre high walks at a uniform speed 5 metre/hour away from a lamp post 6 metre high. The rate at which the length of his shadow increases is |
A. | 5 m/h |
B. | \[\frac{5}{2}\]m/h |
C. | \[\frac{5}{3}\]m/h |
D. | \[\frac{5}{4}\]m/h |
Answer» C. \[\frac{5}{3}\]m/h | |