"The average temperature for the first four days of a week is `40. 2oC`and that of t
Channel: Doubtnut
Date: 2020-04-05

"The average
 temperature for the first four days of a week is `40. 2oC`
and that of
 the last four days is `41. 3oC`
. If the
 average temperature for the whole week is `40. 6oC`
, then the
 temperature on the fourth day is
`40. 8oC`
(b) `41. 3oC`
(c) `41. 8oC`
(d) `38. 5oC`"