Question

The line graph shows the percentage of students passing in 10th and 12 board exams from 5 different schools. Study the graph carefully to answer questions.
Q. In school B if the total students who appeared for 10th standard exam were % more than the students who appeared for 12th standard exam, then find the ratio of students who failed in 10th standard invalid voters to the students who failed in 12th from the same school.

• A. 131:160
• B. 130:161
• C. 127:141
• D. 18:161
• E. None of these

Answer 1

The correct option is B 130:161

Let the total students who appeared for 12th is X
$13\frac{1}{23}\%=\frac{3}{23}$
$\text{Total students who appeared for 10th exams}=(1+\frac{3}{23})X=\frac{26}{23}X\text{Required ratio}\left(\frac{26}{23}X\right)\times \frac{25}{100}:X\times \frac{35}{100}130:161$