Averages
Aptitude

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Q.

The average temperature on Wednesday, Thursday and Friday was $25^circ$. The average temperature on Thursday, Friday and Saturday was $24^circ$. If the temperature on Saturday was $27^circ$, what was the temperature on Wednesday?

 A.

$24^\circ$

 B.

$21^\circ$

 C.

$27^\circ$

 D.

$30^\circ$

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Solution:
Option(D) is correct

Total temperature on Wednesday, Thursday and Friday was $25×3=75^\circ$

Total temperature on Thursday, Friday and Saturday was $24\times 3=72^\circ$

Hence, difference between the temperature on Wednesday and Saturday= $3^\circ$

If Saturday temperature =$27^\circ$, then Wednesday's temperature =$27^\circ+3^\circ=30^\circ$


(2) Comment(s)


Sivaramireddy
 ()

Awesome, just love it...



Suresh
 ()

here's my take:

we'll form two equations

Wed + Thur + Fri $=25*3=75$

Thur + Fri + Sat $=24*3=72$

Subtract the two equations ,we get

Wed - Sat $=3$

Wed = 3 + Sat $=3+27=\textbf{30}$ Smile