Page 7 - Digi Notes - Maths - 25-03-2016

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Percentage of Passed students from six schools over the years

Years /School A B C D E F
1997 34 32 54 38 32 34
1998 32 57 67 42 57 38
1999 36 63 56 52 35 65
2000 42 40 68 57 40 39

2001 48 48 41 63 21 30
2002 53 64 40 36 45 22

1. If the number of students appeared from school C in each year is 4800;

what is the average number of passed students from school C in all the
years?

( × × %)
% =

2. If the number of appeared students from school B and F in 1998 and 2000 are 4000
and 5000 respectively; what is the total number of passed students from school B
and F in the same years?

% × % + % × % =
3. If the ratio of number of appeared students from school B in 2000 and that of school
F in 1998 is 5:7; and number of passed students from school B in 2000 is 1200; what
is the number of appeared students from school F in 1998?

( × %)
% × =

4. If the number of appeared students from school A in 2000 and number of appeared
students from school C in 1999 are equal, what is the respective ratio between the
number of passed students from school A in 2000 and the number of passed
students from school C in the year 1999?

%: % = :

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