In an examination out of 560 students, 80% of the girls and 70% of the boys passed. If total percentage of passed students was 75%, then which one of the following is not correct?
(a)
% of girls and boys in the examination are equal
(b)
196 boys and 224 girls passed the examination
(c)
In the examination, the total number of students passed were 420
(d)
The number of enrolled boys were less than that of girls.
In an examination out of 560 students, 80% of the girls and 70% of the boys passed. If total percentage of passed students was 75%, then which one of the following is not correct?
|
(a) |
% of girls and boys in the examination are equal |
|
(b) |
196 boys and 224 girls passed the examination |
|
(c) |
In the examination, the total number of students passed were 420 |
|
(d) |
The number of enrolled boys were less than that of girls. |
Question ID - 56177 | SaraNextGen Top Answer
In an examination out of 560 students, 80% of the girls and 70% of the boys passed. If total percentage of passed students was 75%, then which one of the following is not correct?
(a)
% of girls and boys in the examination are equal
(b)
196 boys and 224 girls passed the examination
(c)
In the examination, the total number of students passed were 420
(d)
The number of enrolled boys were less than that of girls.
|
In an examination out of 560 students, 80% of the girls and 70% of the boys passed. If total percentage of passed students was 75%, then which one of the following is not correct?
|
Given total number of students=560 % of passed students=75%
∴ Total number of students who passed the examination=
∴ Choice (c) is correct. Let the number of boys be 
According to problem, we have 70% of 
of 
⇒
⇒
number of boys=
and number of girls=560-280=280
As number of boys=number of girls
Again there are 280 boys and 280 girls ∴ Number of boys passed in the examination
=
of 
Also, number of girls passed in the examination =80% of 280=8×28=224
∴ Choice (b) is also correct
As No. of boys=No. of girls, ∴ Choice (d) is not correct.