The table given below shows the production of five companies in two years.

J1= The average production of A in year Y1 and Y2.

J2 = Sum of production of B, C and D in year Y1 and Y2. What is the value of (J2/J1)?

6

J1= The average production of A in year Y1 and Y2

= \(\frac{100 + 50}{2}\) = \(\frac{150}{2}\)

= 75

J2 = Sum of production of B, C and D in year Y1 and Y2

= 90 + 120 + 30 + 80 + 80 + 50

= 450

Now , \(\frac{J2}{J1}\) = \(\frac{450}{75}\) = 6