Salaries of A, B and C were in the ratio 3 : 5 : 7 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of their respective salaries?	Choices:
A) 4 : 5 : 7
B) 3 : 6 : 7
C) 4 : 15 : 18
D) 9 : 16 : 21
E) 8 : 16 : 21
New ratio will be 3 x (150/100) : 5 x (160/100) : 7 x (150/100) = (9/2) : 8 : (21/2)   = 9 : 16 : 21   ANSWER:9 : 16 : 21
<result>D</result>
Salaries of A, B and C were in the ratio 3 : 5 : 7 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of their respective salaries?