Q. 10 Four typists take 15,10,6 and 5 minutes respectively to type a letter. Determine the average time required to type a letter if : (a) Four letters are to be typed by each typist. (b) Each typist works for two hours.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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of work each of them, on the average, will complete in six-hour day?
Also find the total units of work completed.
Q. 10 Four typists take 15,10,6 and 5 minutes respectively to type a letter. Determine the
time required to type a letter if :
(a) Four letters are to be typed by each typist.
(b) Each typist works for two hours.
Q. 11 The following table gives the marks obtained by 100 students in commerce:
Marks
No. of Students
10 marks or less
6
20 marks or less
14
30 marks or less
26
40 marks or less
31
62
50 marks or less
60 marks or less
70 marks or less
80 marks or less
80
88
94
average
Transcribed Image Text:of work each of them, on the average, will complete in six-hour day? Also find the total units of work completed. Q. 10 Four typists take 15,10,6 and 5 minutes respectively to type a letter. Determine the time required to type a letter if : (a) Four letters are to be typed by each typist. (b) Each typist works for two hours. Q. 11 The following table gives the marks obtained by 100 students in commerce: Marks No. of Students 10 marks or less 6 20 marks or less 14 30 marks or less 26 40 marks or less 31 62 50 marks or less 60 marks or less 70 marks or less 80 marks or less 80 88 94 average
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