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Sardar Patel Birthday is celebrated as -

A person travels on a spaceship moving at a speed of 5c / 13 . (a) Find the train interval calculate by him between the consecutive birthday celbrations of his friend on the earth . (b) Find the time interval calculated by the friend on the earth between the consecutive birthday celebrations of the traveller.

Message From Parth Sir

Message From Parth Sir

Bipin is 6 times old as Alok. Bipin's age will be twice of chandan's age after 10 years. If chandan's 7^(th) birthday was celebrated 3 years ago, what is Alok's present age?