39 vote
The average temperature of a town in the first six days of a month was 410C and the sum of the temperatures of the first five days of the same month was 2010C. What was the temperature on the sixth day of the month?
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The average temperature of a town in the first six days of a month was 410C and the sum of the temperatures of the first five days of the same month was 2010C. What was the temperature on the sixth day of the month?
1). 400C
2). 450C
3). 460C
4). 500C
2 answers
29 vote
Solution :
Average temperature of the town in first six days
= Sum of the temperature in first six days / 6
Let us take sixth day's temperature as 'x'.
Given : Average temperature in 6 days = 410C
Sum of the temperature of the first five days = 2010C
Substituting the given values in the above equation we get,
$410C = ( 2010C + x ) / 6$
$2010C + x = 410C × 6$
$2010C + x = 2460C$
$x = 2460C - 2010C$
$x = 410C$
So, the temperature on the sixth day is $410C$.
The correct option is 2).450C
