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 tonnes) is:
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Answer: 73 tonnes
Step-by-step explanation:
Total production of 10 estates 550.
Original average 550÷10= 55
New average for 12 estates 55+3 = 58
Hence new production by 12 estates is 12 × 58 = 696
Additional production 696-550= 146
146 tonnes additional is produced by 2 additional units.
Required average 146÷2= 73 tonnes
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