d Word Problem 3 & 4 (Average temperature, Average weight ) | Job Exam Rare Mathematics (JEMrare) - Solved MCQs

# Word Problem 3 & 4 (Average temperature, Average weight )

Problem 3: The average temperature for Saturday, Sunday and Monday was 82 C, The average of Sunday, Monday and Tuesday was 85 C. if the temperature on Tuesday was 89 C, what was temperature on Saturday?
a) 80 C           b) 90 C              d) 85 C                 d) 81 C
Solution:
Lets suppose temperature on Saturday, Sunday and Tmon be Tsat, Tsun and Tmon;
Then average temperature for these days;   Now suppose temperature on Monday be Tmon, Then average temperature for Sunday, Monday and Tuesday is calculated as;   But temperature on Tuesday was 89C, so put Ttue = 89 in above expression;   Put this value of Tsun+Tmon   in eq(1) above;   So, temperature on Saturday was 80C
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