The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 5 :8.
The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 5 :8. What is the new ratio of the number of students studying Arts, Commerce and Science respectively if there is an increase of 20%, 40% and 25% in the number of students studying Arts, Commerce and Science?
Answer/Solution
18 : 35 : 50
Steps/Work
Suppose the number of students studying Arts, Commerce and Science be 3x, 5x and 8x respectively.
When their numbers are increased by 20%, 40% and 25% respectively the new ratio becomes
3x × 120% : 5x × 140% :
8x × 125% = 36 : 70 : 100
= 18 : 35 : 50
Answer A
When their numbers are increased by 20%, 40% and 25% respectively the new ratio becomes
3x × 120% : 5x × 140% :
8x × 125% = 36 : 70 : 100
= 18 : 35 : 50
Answer A