In a class, average height of all students is a cms. Among them, average height of 10 students is b cms and the average height of the remaining students is c cms. Find the number of students in the class. (Here a > c and b > c )

In a class, average height of all students is a cms. Among them, ave

1.	In a class, average height of all students is a cms. Among them, average height of 10 students is b cms and the average height of the remaining students is c cms. Find the number of students in the class. (Here a > c and b > c )
A.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>(a(b - c))</center></td></tr><tr><td style="text-align: center;">(a - c)</td></tr></table>
B.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>(b - c)</center></td></tr><tr><td style="text-align: center;">(a - c)</td></tr></table>
C.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>(b - c)</center></td></tr><tr><td style="text-align: center;">10 (a - c)</td></tr></table>
D.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>10(b - c)</center></td></tr><tr><td style="text-align: center;">(a - c)</td></tr></table>
Answer» E.

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In a class, average height of all students is a cms. Among them, average height of 10 students is b cms and the average height of the remaining students is c cms. Find the number of students in the class. (Here a > c and b > c )

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