AB and CD are two chords intersecting at point E. Ram started from point A with a speed of 2km/hr. After reaching point E, Ram moved to point D with same speed and covered ED in one-fifth of the time taken for AE. Similarly. Shyam moved from point C to point B through point E. If Shyam takes in total 18 hours to cover the whole distance from C to B through point E with same speed. what is the time Shyam took to cover BE?
It is given that Ram covers ED in one-fifth of the time taken for AE, with a 2km/hr constant speed.
It implies, $$\frac{1}{5}\times\ \frac{AE}{2}\ =\frac{ED}{2}$$
$$AE\ =5\times\ ED$$......(1)
Let the speed of Shyam be 's' Kmph. He covers the whole distance from C to B through point E at the same speed in 18 hours.
It implies, $$\frac{CE+BE}{S}=18 Hrs$$.......(2)
From the properties of circles, $$AE\times\ BE=CE\times\ DE$$
$$5DE\times\ BE=CE\times\ DE$$ [From EQ(1)]
$$CE=5BE$$......(3)
From EQ(2) & (3)
$$\frac{5BE+BE}{S}=18$$
$$\frac{6BE}{S}=18$$
$$\frac{BE}{S}=3\ Hrs.$$
Option (C) is the answer.
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