The given table represents the population of different villages.
| Name of the village | Name of males | Number of females |
| A | 1500 | 1220 |
| B | 1460 | 1320 |
| C | 1105 | 1180 |
| D | 1305 | 1170 |
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?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 1289.17
According to the question
J ;The average number of males in villages A, B and C = (1500 + 1460 +1105)/3
J = 1355
K: denotes the average number of females in villages B, C and D = (1320 +1180 +1170)/3 = 1223.33
Now the average of J and K = (1355 + 1233.33)/2 = 1289.17