(a) Solve : (b) A transport company has a total of 20 vehicles made up of tricycle and taxicabs. Each tricycle carries 2 passengers while each taxicab carries four passengers. If the 20 vehicles carry a total of 66 passengers at a time, how many tricycles does the company have?
Explanation
(a) Multiply through by 3 to clear the fraction : Hence, . (b) Let : t represent number of tricycles; and b represent number of taxicabs Then From (1), b = 20 - t. Put that into eqtn (2), we have: The transport company has 7 tricycles.