Data Interpretation Ques 189
Directions : Study the following bar-diagram carefully and answer the questions given below it.
Number of students attending Maths and Science classes in four different schools
What is the respective ratio between the total number of students of Maths and Science taking all the schools together?
(1) $9: 11$
(2) $9: 13$
(3) $11: 8$
(4) $8: 11$
(5) None of these
Show Answer
Correct Answer: (1)
Solution: (1) Required ratio $=360: 440$ $=9: 11$
Calculations (364–367) :
Population of city ‘X’
$=\frac{100}{35} \times 21000=60000$
Population of village A
$=60000 \times \frac{1}{4}=15000$
Population of village $B$
$=60000 \times \frac{1}{5}=12000$
Population of village $C$
$=\frac{2}{5} \times 60000=24000$
Population of village $D$
$=\frac{24000 \times 60}{100}=14400$
Population of village $E$
$=\frac{12000 \times 85}{100}=10200$
Population of village $F$
$=21000$
BETA
