The given table represents the population of different villages.

J : denotes the average number of males in villages A, B and C.

K: denotes the average number of females in villages B, C and D.

What is the average of J and K?

1289.17

J : denotes the average number of males in villages A, B and C.

= \(\frac{1500 + 1460 + 1105}{3}\)

= \(\frac{4065}{3}\)

= 1355

K: denotes the average number of females in villages B, C and D

= \(\frac{1320 + 1180 + 1170}{3}\) 

= \(\frac{3670}{3}\) 

= 1223.33

Average of J & K = \(\frac{1355 + 1223.33}{2}\) 

= 1289.17