The following table shows the number of trains that originate in the five different zones of the railway network of a country.

The total number of trains that originate in Z3 and Z4 taken together is what percentage of the total number of trains that originate in all the 5 zones taken together? [Give your answer correct to 2 decimal places.]

39.47%

Total number of trains that originate in Z3 and Z4 = 830 + 670 = 1500

Total number of trains originate in all the 5 zone together = 690 +710 + 830 + 670 + 900

= 3800

Required percentage = \(\frac{1500 }{3800}\) × 100

= 39.47%