The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 5 :4. 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? Choose one:
A) 18 : 35 : 50	B) 3 : 10 : 10	C) 4 : 8 : 5	D) 8 : 35 : 25	E) None of these
Suppose the number of students studying Arts, Commerce and Science be 3x, 5x and 4x respectively.   When their numbers are increased by 20%, 40% and 25% respectively the new ratio becomes   3x × 120% : 5x × 140% :   4x × 125% = 36 : 70 : 50   = 18 : 35 : 25   Answer 8 : 35 : 25
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The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 5 :4. 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?