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Maths Puzzle
Numerical Ability
two person walking on a road that diverge at an angle of 120 degree ..if they walk at the rate of 3 and 4km/h respectively .find distance bw them after 4 hours
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- after 4 hours they will be at a distance 12km & 16km respectively
if d is distance b/w then
d^2 = 12^2 + 16^2 -2*12*16*cos(120)
=> d^2 = 12^2 + 16^2 + 12*16 = 592
=> d = 16√37 km
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