The total production of 10 tea estates is 550 tonnes. By opening two new tea estates, the average increases by 3 tonnes. The average production of these two new tea estates (in tones) is: |
|||||||
a) |
70 |
b) |
64 |
c) |
67 |
d) |
73 |
The total production of 10 tea estates is 550 tonnes. By opening two new tea estates, the average increases by 3 tonnes. The average production of these two new tea estates (in tones) is: |
|||||||
a) |
70 |
b) |
64 |
c) |
67 |
d) |
73 |