The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 7 :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?  Choose the correct choice from the following answers
A) 18 : 35 : 50 B) 18 : 49 : 50 C) 4 : 8 : 5 D) 32 : 35 : 25 E) None of these
Suppose the number of students studying Arts, Commerce and Science be 3x, 7x and 8x respectively.   When their numbers are increased by 20%, 40% and 25% respectively the new ratio becomes   3x × 120% : 7x × 140% :   8x × 125% = 36 : 98 : 100   = 18 : 49 : 50   Answer 18 : 49 : 50
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The ratio of number of students studying Arts, Commerce and Science in a College is 3 : 7 :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?