JEE Math Practice Question
The frequency distribution of the age of students in a class of 40 students is given below. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-1wig{font-weight:bold;text-align:left;vertical-align:top} .tg .tg-baqh{text-align:center;vertical-align:top} Age 15 16 17 18 19 20 No of Students 5 8 5 12 $$x$$ $$y$$ If the mean deviation about the median is 1.25, then $$4x+5y$$ is equal to :
- A.43
- B.46
- C.44
- D.47
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