1. The mean weight of 150 students in a certain class is 60 kilograms. The mean weight of boys in the class is 70 kilogram and that of the girls is 55 kilograms. Find the number of boys and number of girls in the class.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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3. An assesses depreciated the machinery of his factory by 10% each in the first two years and by 40%
in the third year and thereby claimed 21% average depreciation relief from taxation department, but
the I.T.O. objected and allowed only 20%. Show which of the two is right.
4. The mean weight of 150 students in a certain class is 60 kilograms. The mean weight of boys in the
class is 70 kilogram and that of the girls is 55 kilograms. Find the number of boys and number of girls
in the class.
Transcribed Image Text:3. An assesses depreciated the machinery of his factory by 10% each in the first two years and by 40% in the third year and thereby claimed 21% average depreciation relief from taxation department, but the I.T.O. objected and allowed only 20%. Show which of the two is right. 4. The mean weight of 150 students in a certain class is 60 kilograms. The mean weight of boys in the class is 70 kilogram and that of the girls is 55 kilograms. Find the number of boys and number of girls in the class.
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