3 With 72 million bicycles correct to the nearest million Japan is at the top of the list of countries with most bicycles per person On average Japanese people travel about 2 km by bicycle correct to the nearest km each day Calculate the upper bound for the total distance travelled by all the bicycles in Japan per day 4 To determine whether a business is making enough profit the following formula is used P C S C S where P is relative profit S is sales and C is costs If a company has 340 000 worth of sales and 230000 of costs correct to 2 significant figures calculate the maximum and minimum relative profit to the ate