The pie chart given below shows the production of 6 different factories. The total production of all these 6 factories is 15000. The production of a particular factory is shown as a percent of total production of all these 6 factories.

J1 = The value of average production of factory F3 and F6.

J2= The difference between the production of factory F1 and F4.

What is the value of (J2 - J1)?

375

Total production of F3 & F6 = ( 6 + 5 )% = 11% of 15000  = 1650

J1 = Average of F3 & F6 = \(\frac{1650}{2}\)  = 825

Total production of F1  = 20%  of 15000  = 3000

Total production of F4 = 28%  of 15000  = 4200

J2 = Difference of F1 & F4 = 4200 - 3000 = 1200

Now , ( J2 - J1) = 1200 - 825 = 375