The following pie charts show the distribution of students studying Science and Commerce in three different schools namely A, B, C.
The ratio of the number of students studying Science to that studying Commerce in school B is:
A
3:4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2:3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1:2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
1:1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C1:2 Step 1: Given,total number of students in Science =400
Central angle of the school B sector =90∘ ∴Number of students studying Science in school B = Total number of students in Science × Fraction of school B =400×90∘360∘ =400×14 =100
Step 2: Total number of students in Commerce =600
Central angle of the school B sector =120∘ ∴Number of students studying Commerce in school B = Total number of students in Commerce × Fraction of school B =600×120∘360∘ =600×13 =200
Step 3: Ratio of the number of students studying Science to that studying Commerce in school B =Number of students studying Science in school B : Number of students studying Commerce in school B =100:200
Divide both sides by 100 =100100:200100 =1:2