Nafiza bought a ticket of a cricket match for Tk. 25 and later sold the ticket to Raida for Tk. 75. What was the percent increase in the price of the ticket?
A motor cycle covers 40 km with a speed of 20 km/hr. Find the speed of the motor cycle for the next 40 km journy so that the average speed of the whole journey will be 30 km/hr?
৭০
52.5
৬০
60.5