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The average temperature for Monday, Tuesday and Wednesday was 40C. The average for Tuesday, Wednesday and Thursday was 41 C. If on Thursday temperature is 45C, what was it on Monday ?
- a)40C
- b)41C
- c)42C
- d)43.5C
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
The average temperature for Monday, Tuesday and Wednesday was 40C. The...
Total temperature for Monday, Tuesday, Wednesday and Thursday = 40 x 3 + 45 = 165 C
Total for Tuesday, Wednesday and Thursday = 41 x 3 = 123 C
So,
Temperature for Monday = 165 - 123 = 42 C
Most Upvoted Answer
The average temperature for Monday, Tuesday and Wednesday was 40C. The...
Given Information:
The average temperature for Monday, Tuesday and Wednesday was 40C.
The average for Tuesday, Wednesday and Thursday was 41 C.
On Thursday temperature is 45C.
To Find: What was the temperature on Monday?
Solution:
Let's assume the temperature on Monday, Tuesday and Wednesday as M, T and W respectively.
According to the given information, we can frame the following equations:
(M + T + W)/3 = 40 ----(1)
(T + W + Th)/3 = 41 ----(2)
Th = 45 ----(3)
We need to find the value of M.
From equation (1), we get:
M + T + W = 120
From equation (2), we get:
T + W + Th = 123
Substituting the value of Th from equation (3), we get:
T + W + 45 = 123
T + W = 78
Substituting the value of T + W in equation (1), we get:
M + 78 = 120
M = 42
Therefore, the temperature on Monday was 42C. Hence, option (C) is the correct answer.
The average temperature for Monday, Tuesday and Wednesday was 40C.
The average for Tuesday, Wednesday and Thursday was 41 C.
On Thursday temperature is 45C.
To Find: What was the temperature on Monday?
Solution:
Let's assume the temperature on Monday, Tuesday and Wednesday as M, T and W respectively.
According to the given information, we can frame the following equations:
(M + T + W)/3 = 40 ----(1)
(T + W + Th)/3 = 41 ----(2)
Th = 45 ----(3)
We need to find the value of M.
From equation (1), we get:
M + T + W = 120
From equation (2), we get:
T + W + Th = 123
Substituting the value of Th from equation (3), we get:
T + W + 45 = 123
T + W = 78
Substituting the value of T + W in equation (1), we get:
M + 78 = 120
M = 42
Therefore, the temperature on Monday was 42C. Hence, option (C) is the correct answer.
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