1.

A boy started from his house by bicycle at 10 a.m. at a speed of 12 km per hour. His elder brother started after 1 hr 15 mins by scooter along the same path and caught him at 1.30 p.m. The speed of the scooter will be ( in km/hr)1). 4.52). 363). $18\frac{2}{3}$4). 9

Answer»

18 2/3



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