In a class- number of desk and number of students are tabulated as follows-Number of desks-101520-Number of students-203040Find the proportional number of desk for 50 students-

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In a class, n...

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In a class, number of desk and number of students are tabulated as follows: Number of desks Number of students

10 15 20

20 30 40

Find the proportional number of desk for 50 students.

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:

Marks	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$
Number of students	$12$	$35$	$15$	$25$	$13$

15

R s . 20

\begin{matrix} Number of hours & 100 - 120 & 120 - 140 & 140 - 160 & 160 - 180 & 180 - 200 Number of students & 19 & 28 & 30 & 16 & 7 \end{matrix}

Marks obtained	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$
Number of students	$5$	$8$	$15$	$16$	$6$

100

Marks	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$60 - 70$	$70 - 80$
Number of students	$5$	$10$	$15$	$20$	$25$	$12$	$8$	$5$

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