Discussion :: Bar charts
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The average production of 1996 and 1997 was exactly equal to the average production of which of the following pairs of years?
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Answer : Option D
Explanation :
Average production (in 10000 tonnes) of 1996 and 1997 \(\frac { 40 +60 } { 2 }\) = 50
We shall find the average production (in 10000 tonnes) for each of the given alternative pairs:
2000 and 2001 = \(\frac { 50 +75 } { 2 }\) = 62.5
1999 and 2000 = \(\frac { 65 +50 } { 2 }\) = 57.5
1998 and 2000 = \(\frac { 45 +50 } { 2 }\) =47.5
1995 and 1999 = \(\frac { 25 +65 } { 2 }\) =45
1995 and 2001 = \(\frac {25 +75 } { 2 }\) = 50
The average production of 1996 and 1997 is equal to the average production of 1995 and 200
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