Let E1,E2,E3 be the events that candidate travel by bus, scooter or car.P(E1)=52,P(E2)=51,P(E3)=52Let 'A' be the event that candidate reaches late.∴P(E1A)=51,P(E2A)=31,P(E3A)=41Now, P(AE1)=P(E1)⋅P(E1A)+P(E2)⋅P(E2A)+P(E3)⋅P(E3A)P(E1)⋅P(E1A)⇒52×51+51×31+52×4152×51⇒3712