1.

Two persons are on either sides of a tower of height 50 m. The persons observers the top of the tower at an angle of elevation of 30 and 60 . If a car crosses these two persons in 10 seconds, what is

A. 17 3 km/hr
B. 21 3 km/hr
C. 22 3 km/hr
D. 24 3 km/hr
Answer» E.


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