The average temperature for Wednesday, Thursday and Friday was 42 Deg c. The average for Thursday, Friday and Saturday was 43 Deg c. If temperature on Saturday was 44 Deg c, what was the temperature on Wednesday

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Solution

Average temperature for Wednesday, Thursday and Friday $= 42^{o} C$
Total temperature $= 3 \times 42^{o} C = 126^{o} C$
Average temperature for Thursday, Friday and Saturday $= 43^{o} C$
Total temperature $= 43 \times 3 = 129^{o} C$
Temperature on Saturday $= 44^{o} C$
Now,
$(T h u r s d a y + F r i d a y + S a t u r d a y) - (W e d n e s d a y + T h u r s d a y + F r i d a y) = 129^{o} - 126^{o} C$
$S a t u r d a y - W e d n e s d a y = 3$
$W e d n e s d a y = 44^{o} C - 3^{o} C = 41^{o} C .$

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