The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 6 :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? Answers:
A) 18 : 21 : 50
B) 3 : 10 : 10
C) 4 : 8 : 5
D) 32 : 35 : 25
E) None of these
Suppose the number of students studying Arts, Commerce and Science be 3x, 6x and 8x respectively.   When their numbers are increased by 20%, 40% and 25% respectively the new ratio becomes   3x × 120% : 6x × 140% :   8x × 125% = 36 : 84 : 100   = 18 : 21 : 50   18 : 21 : 50nswer 18 : 21 : 50
<result>A</result>
The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 6 :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?