# The average temperature for Wednesday, Thursday and Friday was 40^{°}C. The average for Thursday, Friday and Saturday was 41° C. If temperature on Saturday was 42° C, what was the temperature on Wednesday?

A. 39° C

B. 44° C

C. 38° C

D. 41° C

**Answer: Option A **

__Solution(By Examveda Team)__

Average temperature for Wednesday, Thursday and Friday = 40° CTotal temperature = 3 × 40 = 120° C

Average temperature for Thursday, Friday and Saturday = 41° C

Total temperature = 41 × 3 = 123° C

Temperature on Saturday = 42° C

Now,

(Thursday + Friday + Saturday) - (Wednesday + Thursday + Friday) = 123 - 120;

Saturday - Wednesday = 3

Wednesday = 42 - 3 = 39° C

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## Comments ( 14 )

Related Questions on Average

A. 125 km/hr

B. 75 km/hr

C. 135 km/hr

D. 120 km/hr

Let a=Wednesday

b=Thursday, c=Friday, d=Saturday

Eqn 1: (a+b+c)/3 =40°C

Eqn 2: (b+c+d)/3 = 41°C

Where d=Saturday=42°C

(b+c+42)/3 = 41°C

b+c+42 = 41*3

b+c = 123-42 = 81°C

: Thursday+Friday=81°C

For Wednesday, using eqn 1

(a+81)/3 = 40°C

a+81 = 40*3

a = 120-81

a = 39°C

Temperature on Wednesday was 39°C

Right

Short cut method is also explain...

Good expalined

Saturday - Wednesday = 3 what we get

explain in shortcut method

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39 is correct answer

its correct ans is 39

ur solution is correct but answer choice not correct

it should be A)39`c

easy but some tricky