The average temperature of Monday,Tuesday,Wed | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Let the temperatures of Monday,Tuesday,Wednesday,Thursday,and Friday be $M, T, W, Th,$ and $F$ respectively.Given,the average of $M, T, W, Th$ is

Vedclass · Accepted Answer

$75$

Vedclass · Answer

(C) Let the temperatures of Monday,Tuesday,Wednesday,Thursday,and Friday be $M, T, W, Th,$ and $F$ respectively.Given,the average of $M, T, W, Th$ is $60^{\circ}$.Sum of temperatures $(M + T + W + Th) = 60 	imes 4 = 240^{\circ}$.Given,the average of $T, W, Th, F$ is $63^{\circ}$.Sum of temperatures $(T + W + Th + F) = 63 	imes 4 = 252^{\circ}$.Subtracting the first equation from the second:$(T + W + Th + F) - (M + T + W + Th) = 252 - 240$$F - M = 12^{\circ}$.Given the ratio $M : F = 21 : 25$. Let $M = 21x$ and $F = 25x$.Substituting these into the difference equation:$25x - 21x = 12$$4x = 12$$x = 3$.Therefore,the temperature of Friday $F = 25 	imes 3 = 75^{\circ}$.

The average temperature of Monday,Tuesday,Wednesday and Thursday is $60^{\circ}$. The average temperature for Tuesday,Wednesday,Thursday and Friday is $63^{\circ}$. If the ratio of temperature for Monday and Friday is $21: 25,$ then what is the temperature of Friday? (in $^{\circ}$)

Similar Questions

The average age of a family of $6$ members is $22 \text{ years}$. If the age of the youngest member is $7 \text{ years}$,then what was the average age of the family at the birth of the youngest member?

The average marks of a student in four subjects is $75$. If the student obtained $80$ marks in the $5^{th}$ subject,then the new average is?

The average age of a cricket team reduces by $2$ when two senior players aged $32$ and $30$ are replaced by $2$ youngsters of equal age. What is the age of these youngsters?

Out of $9$ persons,$8$ persons spent $Rs. 30$ each for their meals. The ninth one spent $Rs. 20$ more than the average expenditure of all the nine. The total money spent by all of them was (in $Rs.$)

Three $years$ ago,the average age of a family of $5$ members was $17$ $years$. With the birth of a new baby,the average age of the family remains the same even today. Find the age of the baby (in $years$).

Vedclass Test Series

Exam Paper Generator

Online Exam Module